78639840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{563}}^1$

素因数の和:681

約数の個数: 144

約数和(自身を含む): 271606608

約数和(自身を除く): 192966768

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 97, 120, 144, 160, 180, 194, 240, 288, 291, 360, 388, 480, 485, 563, 582, 720, 776, 873, 970, 1126, 1164, 1440, 1455, 1552, 1689, 1746, 1940, 2252, 2328, 2815, 2910, 3104, 3378, 3492, 3880, 4365, 4504, 4656, 5067, 5630, 5820, 6756, 6984, 7760, 8445, 8730, 9008, 9312, 10134, 11260, 11640, 13512, 13968, 15520, 16890, 17460, 18016, 20268, 22520, 23280, 25335, 27024, 27936, 33780, 34920, 40536, 45040, 46560, 50670, 54048, 54611, 67560, 69840, 81072, 90080, 101340, 109222, 135120, 139680, 162144, 163833, 202680, 218444, 270240, 273055, 327666, 405360, 436888, 491499, 546110, 655332, 810720, 819165, 873776, 982998, 1092220, 1310664, 1638330, 1747552, 1965996, 2184440, 2457495, 2621328, 3276660, 3931992, 4368880, 4914990, 5242656, 6553320, 7863984, 8737760, 9829980, 13106640, 15727968, 19659960, 26213280, 39319920, 78639840]

約数ペア:

[(1, 78639840), (2, 39319920), (3, 26213280), (4, 19659960), (5, 15727968), (6, 13106640), (8, 9829980), (9, 8737760), (10, 7863984), (12, 6553320), (15, 5242656), (16, 4914990), (18, 4368880), (20, 3931992), (24, 3276660), (30, 2621328), (32, 2457495), (36, 2184440), (40, 1965996), (45, 1747552), (48, 1638330), (60, 1310664), (72, 1092220), (80, 982998), (90, 873776), (96, 819165), (97, 810720), (120, 655332), (144, 546110), (160, 491499), (180, 436888), (194, 405360), (240, 327666), (288, 273055), (291, 270240), (360, 218444), (388, 202680), (480, 163833), (485, 162144), (563, 139680), (582, 135120), (720, 109222), (776, 101340), (873, 90080), (970, 81072), (1126, 69840), (1164, 67560), (1440, 54611), (1455, 54048), (1552, 50670), (1689, 46560), (1746, 45040), (1940, 40536), (2252, 34920), (2328, 33780), (2815, 27936), (2910, 27024), (3104, 25335), (3378, 23280), (3492, 22520), (3880, 20268), (4365, 18016), (4504, 17460), (4656, 16890), (5067, 15520), (5630, 13968), (5820, 13512), (6756, 11640), (6984, 11260), (7760, 10134), (8445, 9312), (8730, 9008)]