1779960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 6612480

約数和(自身を除く): 4832520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 163, 168, 182, 195, 210, 260, 273, 280, 312, 326, 364, 390, 420, 455, 489, 520, 546, 652, 728, 780, 815, 840, 910, 978, 1092, 1141, 1304, 1365, 1560, 1630, 1820, 1956, 2119, 2184, 2282, 2445, 2730, 3260, 3423, 3640, 3912, 4238, 4564, 4890, 5460, 5705, 6357, 6520, 6846, 8476, 9128, 9780, 10595, 10920, 11410, 12714, 13692, 14833, 16952, 17115, 19560, 21190, 22820, 25428, 27384, 29666, 31785, 34230, 42380, 44499, 45640, 50856, 59332, 63570, 68460, 74165, 84760, 88998, 118664, 127140, 136920, 148330, 177996, 222495, 254280, 296660, 355992, 444990, 593320, 889980, 1779960]

約数ペア:

[(1, 1779960), (2, 889980), (3, 593320), (4, 444990), (5, 355992), (6, 296660), (7, 254280), (8, 222495), (10, 177996), (12, 148330), (13, 136920), (14, 127140), (15, 118664), (20, 88998), (21, 84760), (24, 74165), (26, 68460), (28, 63570), (30, 59332), (35, 50856), (39, 45640), (40, 44499), (42, 42380), (52, 34230), (56, 31785), (60, 29666), (65, 27384), (70, 25428), (78, 22820), (84, 21190), (91, 19560), (104, 17115), (105, 16952), (120, 14833), (130, 13692), (140, 12714), (156, 11410), (163, 10920), (168, 10595), (182, 9780), (195, 9128), (210, 8476), (260, 6846), (273, 6520), (280, 6357), (312, 5705), (326, 5460), (364, 4890), (390, 4564), (420, 4238), (455, 3912), (489, 3640), (520, 3423), (546, 3260), (652, 2730), (728, 2445), (780, 2282), (815, 2184), (840, 2119), (910, 1956), (978, 1820), (1092, 1630), (1141, 1560), (1304, 1365)]