81901260

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:533

約数の個数: 192

約数和(自身を含む): 298045440

約数和(自身を除く): 216144180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 47, 54, 60, 63, 70, 84, 90, 94, 105, 108, 126, 135, 140, 141, 180, 188, 189, 210, 235, 252, 270, 282, 315, 329, 378, 420, 423, 461, 470, 540, 564, 630, 658, 705, 756, 846, 922, 940, 945, 987, 1260, 1269, 1316, 1383, 1410, 1645, 1692, 1844, 1890, 1974, 2115, 2305, 2538, 2766, 2820, 2961, 3227, 3290, 3780, 3948, 4149, 4230, 4610, 4935, 5076, 5532, 5922, 6345, 6454, 6580, 6915, 8298, 8460, 8883, 9220, 9681, 9870, 11844, 12447, 12690, 12908, 13830, 14805, 16135, 16596, 17766, 19362, 19740, 20745, 21667, 24894, 25380, 27660, 29043, 29610, 32270, 35532, 38724, 41490, 43334, 44415, 48405, 49788, 58086, 59220, 62235, 64540, 65001, 82980, 86668, 87129, 88830, 96810, 108335, 116172, 124470, 130002, 145215, 151669, 174258, 177660, 193620, 195003, 216670, 248940, 260004, 290430, 303338, 325005, 348516, 390006, 433340, 435645, 455007, 580860, 585009, 606676, 650010, 758345, 780012, 871290, 910014, 975015, 1170018, 1300020, 1365021, 1516690, 1742580, 1820028, 1950030, 2275035, 2340036, 2730042, 2925045, 3033380, 3900060, 4095063, 4550070, 5460084, 5850090, 6825105, 8190126, 9100140, 11700180, 13650210, 16380252, 20475315, 27300420, 40950630, 81901260]

約数ペア:

[(1, 81901260), (2, 40950630), (3, 27300420), (4, 20475315), (5, 16380252), (6, 13650210), (7, 11700180), (9, 9100140), (10, 8190126), (12, 6825105), (14, 5850090), (15, 5460084), (18, 4550070), (20, 4095063), (21, 3900060), (27, 3033380), (28, 2925045), (30, 2730042), (35, 2340036), (36, 2275035), (42, 1950030), (45, 1820028), (47, 1742580), (54, 1516690), (60, 1365021), (63, 1300020), (70, 1170018), (84, 975015), (90, 910014), (94, 871290), (105, 780012), (108, 758345), (126, 650010), (135, 606676), (140, 585009), (141, 580860), (180, 455007), (188, 435645), (189, 433340), (210, 390006), (235, 348516), (252, 325005), (270, 303338), (282, 290430), (315, 260004), (329, 248940), (378, 216670), (420, 195003), (423, 193620), (461, 177660), (470, 174258), (540, 151669), (564, 145215), (630, 130002), (658, 124470), (705, 116172), (756, 108335), (846, 96810), (922, 88830), (940, 87129), (945, 86668), (987, 82980), (1260, 65001), (1269, 64540), (1316, 62235), (1383, 59220), (1410, 58086), (1645, 49788), (1692, 48405), (1844, 44415), (1890, 43334), (1974, 41490), (2115, 38724), (2305, 35532), (2538, 32270), (2766, 29610), (2820, 29043), (2961, 27660), (3227, 25380), (3290, 24894), (3780, 21667), (3948, 20745), (4149, 19740), (4230, 19362), (4610, 17766), (4935, 16596), (5076, 16135), (5532, 14805), (5922, 13830), (6345, 12908), (6454, 12690), (6580, 12447), (6915, 11844), (8298, 9870), (8460, 9681), (8883, 9220)]