638116560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20611}}^1$

素因数の和:20673

約数の個数: 120

約数和(自身を含む): 2192951904

約数和(自身を除く): 1554835344

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 720, 774, 860, 1032, 1290, 1548, 1720, 1935, 2064, 2580, 3096, 3440, 3870, 5160, 6192, 7740, 10320, 15480, 20611, 30960, 41222, 61833, 82444, 103055, 123666, 164888, 185499, 206110, 247332, 309165, 329776, 370998, 412220, 494664, 618330, 741996, 824440, 886273, 927495, 989328, 1236660, 1483992, 1648880, 1772546, 1854990, 2473320, 2658819, 2967984, 3545092, 3709980, 4431365, 4946640, 5317638, 7090184, 7419960, 7976457, 8862730, 10635276, 13294095, 14180368, 14839920, 15952914, 17725460, 21270552, 26588190, 31905828, 35450920, 39882285, 42541104, 53176380, 63811656, 70901840, 79764570, 106352760, 127623312, 159529140, 212705520, 319058280, 638116560]

約数ペア:

[(1, 638116560), (2, 319058280), (3, 212705520), (4, 159529140), (5, 127623312), (6, 106352760), (8, 79764570), (9, 70901840), (10, 63811656), (12, 53176380), (15, 42541104), (16, 39882285), (18, 35450920), (20, 31905828), (24, 26588190), (30, 21270552), (36, 17725460), (40, 15952914), (43, 14839920), (45, 14180368), (48, 13294095), (60, 10635276), (72, 8862730), (80, 7976457), (86, 7419960), (90, 7090184), (120, 5317638), (129, 4946640), (144, 4431365), (172, 3709980), (180, 3545092), (215, 2967984), (240, 2658819), (258, 2473320), (344, 1854990), (360, 1772546), (387, 1648880), (430, 1483992), (516, 1236660), (645, 989328), (688, 927495), (720, 886273), (774, 824440), (860, 741996), (1032, 618330), (1290, 494664), (1548, 412220), (1720, 370998), (1935, 329776), (2064, 309165), (2580, 247332), (3096, 206110), (3440, 185499), (3870, 164888), (5160, 123666), (6192, 103055), (7740, 82444), (10320, 61833), (15480, 41222), (20611, 30960)]