215679240

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{607}}^1$

素因数の和:681

約数の個数: 256

約数和(自身を含む): 840499200

約数和(自身を除く): 624819960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 47, 54, 56, 60, 63, 70, 72, 84, 90, 94, 105, 108, 120, 126, 135, 140, 141, 168, 180, 188, 189, 210, 216, 235, 252, 270, 280, 282, 315, 329, 360, 376, 378, 420, 423, 470, 504, 540, 564, 607, 630, 658, 705, 756, 840, 846, 940, 945, 987, 1080, 1128, 1214, 1260, 1269, 1316, 1410, 1512, 1645, 1692, 1821, 1880, 1890, 1974, 2115, 2428, 2520, 2538, 2632, 2820, 2961, 3035, 3290, 3384, 3642, 3780, 3948, 4230, 4249, 4856, 4935, 5076, 5463, 5640, 5922, 6070, 6345, 6580, 7284, 7560, 7896, 8460, 8498, 8883, 9105, 9870, 10152, 10926, 11844, 12140, 12690, 12747, 13160, 14568, 14805, 16389, 16920, 16996, 17766, 18210, 19740, 21245, 21852, 23688, 24280, 25380, 25494, 27315, 28529, 29610, 32778, 33992, 35532, 36420, 38241, 39480, 42490, 43704, 44415, 50760, 50988, 54630, 57058, 59220, 63735, 65556, 71064, 72840, 76482, 81945, 84980, 85587, 88830, 101976, 109260, 114116, 114723, 118440, 127470, 131112, 142645, 152964, 163890, 169960, 171174, 177660, 191205, 199703, 218520, 228232, 229446, 254940, 256761, 285290, 305928, 327780, 342348, 355320, 382410, 399406, 427935, 458892, 509880, 513522, 570580, 573615, 599109, 655560, 684696, 764820, 770283, 798812, 855870, 917784, 998515, 1027044, 1141160, 1147230, 1198218, 1283805, 1529640, 1540566, 1597624, 1711740, 1797327, 1997030, 2054088, 2294460, 2396436, 2567610, 2995545, 3081132, 3423480, 3594654, 3851415, 3994060, 4588920, 4792872, 5135220, 5391981, 5991090, 6162264, 7189308, 7702830, 7988120, 8986635, 10270440, 10783962, 11982180, 14378616, 15405660, 17973270, 21567924, 23964360, 26959905, 30811320, 35946540, 43135848, 53919810, 71893080, 107839620, 215679240]

約数ペア:

[(1, 215679240), (2, 107839620), (3, 71893080), (4, 53919810), (5, 43135848), (6, 35946540), (7, 30811320), (8, 26959905), (9, 23964360), (10, 21567924), (12, 17973270), (14, 15405660), (15, 14378616), (18, 11982180), (20, 10783962), (21, 10270440), (24, 8986635), (27, 7988120), (28, 7702830), (30, 7189308), (35, 6162264), (36, 5991090), (40, 5391981), (42, 5135220), (45, 4792872), (47, 4588920), (54, 3994060), (56, 3851415), (60, 3594654), (63, 3423480), (70, 3081132), (72, 2995545), (84, 2567610), (90, 2396436), (94, 2294460), (105, 2054088), (108, 1997030), (120, 1797327), (126, 1711740), (135, 1597624), (140, 1540566), (141, 1529640), (168, 1283805), (180, 1198218), (188, 1147230), (189, 1141160), (210, 1027044), (216, 998515), (235, 917784), (252, 855870), (270, 798812), (280, 770283), (282, 764820), (315, 684696), (329, 655560), (360, 599109), (376, 573615), (378, 570580), (420, 513522), (423, 509880), (470, 458892), (504, 427935), (540, 399406), (564, 382410), (607, 355320), (630, 342348), (658, 327780), (705, 305928), (756, 285290), (840, 256761), (846, 254940), (940, 229446), (945, 228232), (987, 218520), (1080, 199703), (1128, 191205), (1214, 177660), (1260, 171174), (1269, 169960), (1316, 163890), (1410, 152964), (1512, 142645), (1645, 131112), (1692, 127470), (1821, 118440), (1880, 114723), (1890, 114116), (1974, 109260), (2115, 101976), (2428, 88830), (2520, 85587), (2538, 84980), (2632, 81945), (2820, 76482), (2961, 72840), (3035, 71064), (3290, 65556), (3384, 63735), (3642, 59220), (3780, 57058), (3948, 54630), (4230, 50988), (4249, 50760), (4856, 44415), (4935, 43704), (5076, 42490), (5463, 39480), (5640, 38241), (5922, 36420), (6070, 35532), (6345, 33992), (6580, 32778), (7284, 29610), (7560, 28529), (7896, 27315), (8460, 25494), (8498, 25380), (8883, 24280), (9105, 23688), (9870, 21852), (10152, 21245), (10926, 19740), (11844, 18210), (12140, 17766), (12690, 16996), (12747, 16920), (13160, 16389), (14568, 14805)]