257488560

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1087}}^1$

素因数の和:1160

約数の個数: 240

約数和(自身を含む): 1010221056

約数和(自身を除く): 752732496

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 47, 48, 56, 60, 63, 70, 72, 80, 84, 90, 94, 105, 112, 120, 126, 140, 141, 144, 168, 180, 188, 210, 235, 240, 252, 280, 282, 315, 329, 336, 360, 376, 420, 423, 470, 504, 560, 564, 630, 658, 705, 720, 752, 840, 846, 940, 987, 1008, 1087, 1128, 1260, 1316, 1410, 1645, 1680, 1692, 1880, 1974, 2115, 2174, 2256, 2520, 2632, 2820, 2961, 3261, 3290, 3384, 3760, 3948, 4230, 4348, 4935, 5040, 5264, 5435, 5640, 5922, 6522, 6580, 6768, 7609, 7896, 8460, 8696, 9783, 9870, 10870, 11280, 11844, 13044, 13160, 14805, 15218, 15792, 16305, 16920, 17392, 19566, 19740, 21740, 22827, 23688, 26088, 26320, 29610, 30436, 32610, 33840, 38045, 39132, 39480, 43480, 45654, 47376, 48915, 51089, 52176, 59220, 60872, 65220, 68481, 76090, 78264, 78960, 86960, 91308, 97830, 102178, 114135, 118440, 121744, 130440, 136962, 152180, 153267, 156528, 182616, 195660, 204356, 228270, 236880, 255445, 260880, 273924, 304360, 306534, 342405, 357623, 365232, 391320, 408712, 456540, 459801, 510890, 547848, 608720, 613068, 684810, 715246, 766335, 782640, 817424, 913080, 919602, 1021780, 1072869, 1095696, 1226136, 1369620, 1430492, 1532670, 1788115, 1826160, 1839204, 2043560, 2145738, 2299005, 2452272, 2739240, 2860984, 3065340, 3218607, 3576230, 3678408, 4087120, 4291476, 4598010, 5364345, 5478480, 5721968, 6130680, 6437214, 7152460, 7356816, 8582952, 9196020, 10728690, 12261360, 12874428, 14304920, 16093035, 17165904, 18392040, 21457380, 25748856, 28609840, 32186070, 36784080, 42914760, 51497712, 64372140, 85829520, 128744280, 257488560]

約数ペア:

[(1, 257488560), (2, 128744280), (3, 85829520), (4, 64372140), (5, 51497712), (6, 42914760), (7, 36784080), (8, 32186070), (9, 28609840), (10, 25748856), (12, 21457380), (14, 18392040), (15, 17165904), (16, 16093035), (18, 14304920), (20, 12874428), (21, 12261360), (24, 10728690), (28, 9196020), (30, 8582952), (35, 7356816), (36, 7152460), (40, 6437214), (42, 6130680), (45, 5721968), (47, 5478480), (48, 5364345), (56, 4598010), (60, 4291476), (63, 4087120), (70, 3678408), (72, 3576230), (80, 3218607), (84, 3065340), (90, 2860984), (94, 2739240), (105, 2452272), (112, 2299005), (120, 2145738), (126, 2043560), (140, 1839204), (141, 1826160), (144, 1788115), (168, 1532670), (180, 1430492), (188, 1369620), (210, 1226136), (235, 1095696), (240, 1072869), (252, 1021780), (280, 919602), (282, 913080), (315, 817424), (329, 782640), (336, 766335), (360, 715246), (376, 684810), (420, 613068), (423, 608720), (470, 547848), (504, 510890), (560, 459801), (564, 456540), (630, 408712), (658, 391320), (705, 365232), (720, 357623), (752, 342405), (840, 306534), (846, 304360), (940, 273924), (987, 260880), (1008, 255445), (1087, 236880), (1128, 228270), (1260, 204356), (1316, 195660), (1410, 182616), (1645, 156528), (1680, 153267), (1692, 152180), (1880, 136962), (1974, 130440), (2115, 121744), (2174, 118440), (2256, 114135), (2520, 102178), (2632, 97830), (2820, 91308), (2961, 86960), (3261, 78960), (3290, 78264), (3384, 76090), (3760, 68481), (3948, 65220), (4230, 60872), (4348, 59220), (4935, 52176), (5040, 51089), (5264, 48915), (5435, 47376), (5640, 45654), (5922, 43480), (6522, 39480), (6580, 39132), (6768, 38045), (7609, 33840), (7896, 32610), (8460, 30436), (8696, 29610), (9783, 26320), (9870, 26088), (10870, 23688), (11280, 22827), (11844, 21740), (13044, 19740), (13160, 19566), (14805, 17392), (15218, 16920), (15792, 16305)]