128538400

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:195

約数の個数: 144

約数和(自身を含む): 332978688

約数和(自身を除く): 204440288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 71, 73, 80, 100, 124, 142, 146, 155, 160, 200, 248, 284, 292, 310, 355, 365, 400, 496, 568, 584, 620, 710, 730, 775, 800, 992, 1136, 1168, 1240, 1420, 1460, 1550, 1775, 1825, 2201, 2263, 2272, 2336, 2480, 2840, 2920, 3100, 3550, 3650, 4402, 4526, 4960, 5183, 5680, 5840, 6200, 7100, 7300, 8804, 9052, 10366, 11005, 11315, 11360, 11680, 12400, 14200, 14600, 17608, 18104, 20732, 22010, 22630, 24800, 25915, 28400, 29200, 35216, 36208, 41464, 44020, 45260, 51830, 55025, 56575, 56800, 58400, 70432, 72416, 82928, 88040, 90520, 103660, 110050, 113150, 129575, 160673, 165856, 176080, 181040, 207320, 220100, 226300, 259150, 321346, 352160, 362080, 414640, 440200, 452600, 518300, 642692, 803365, 829280, 880400, 905200, 1036600, 1285384, 1606730, 1760800, 1810400, 2073200, 2570768, 3213460, 4016825, 4146400, 5141536, 6426920, 8033650, 12853840, 16067300, 25707680, 32134600, 64269200, 128538400]

約数ペア:

[(1, 128538400), (2, 64269200), (4, 32134600), (5, 25707680), (8, 16067300), (10, 12853840), (16, 8033650), (20, 6426920), (25, 5141536), (31, 4146400), (32, 4016825), (40, 3213460), (50, 2570768), (62, 2073200), (71, 1810400), (73, 1760800), (80, 1606730), (100, 1285384), (124, 1036600), (142, 905200), (146, 880400), (155, 829280), (160, 803365), (200, 642692), (248, 518300), (284, 452600), (292, 440200), (310, 414640), (355, 362080), (365, 352160), (400, 321346), (496, 259150), (568, 226300), (584, 220100), (620, 207320), (710, 181040), (730, 176080), (775, 165856), (800, 160673), (992, 129575), (1136, 113150), (1168, 110050), (1240, 103660), (1420, 90520), (1460, 88040), (1550, 82928), (1775, 72416), (1825, 70432), (2201, 58400), (2263, 56800), (2272, 56575), (2336, 55025), (2480, 51830), (2840, 45260), (2920, 44020), (3100, 41464), (3550, 36208), (3650, 35216), (4402, 29200), (4526, 28400), (4960, 25915), (5183, 24800), (5680, 22630), (5840, 22010), (6200, 20732), (7100, 18104), (7300, 17608), (8804, 14600), (9052, 14200), (10366, 12400), (11005, 11680), (11315, 11360)]