128984800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{743}}^1$

素因数の和:801

約数の個数: 144

約数和(自身を含む): 371976192

約数和(自身を除く): 242991392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 140, 155, 160, 175, 200, 217, 224, 248, 280, 310, 350, 400, 434, 496, 560, 620, 700, 743, 775, 800, 868, 992, 1085, 1120, 1240, 1400, 1486, 1550, 1736, 2170, 2480, 2800, 2972, 3100, 3472, 3715, 4340, 4960, 5201, 5425, 5600, 5944, 6200, 6944, 7430, 8680, 10402, 10850, 11888, 12400, 14860, 17360, 18575, 20804, 21700, 23033, 23776, 24800, 26005, 29720, 34720, 37150, 41608, 43400, 46066, 52010, 59440, 74300, 83216, 86800, 92132, 104020, 115165, 118880, 130025, 148600, 161231, 166432, 173600, 184264, 208040, 230330, 260050, 297200, 322462, 368528, 416080, 460660, 520100, 575825, 594400, 644924, 737056, 806155, 832160, 921320, 1040200, 1151650, 1289848, 1612310, 1842640, 2080400, 2303300, 2579696, 3224620, 3685280, 4030775, 4160800, 4606600, 5159392, 6449240, 8061550, 9213200, 12898480, 16123100, 18426400, 25796960, 32246200, 64492400, 128984800]

約数ペア:

[(1, 128984800), (2, 64492400), (4, 32246200), (5, 25796960), (7, 18426400), (8, 16123100), (10, 12898480), (14, 9213200), (16, 8061550), (20, 6449240), (25, 5159392), (28, 4606600), (31, 4160800), (32, 4030775), (35, 3685280), (40, 3224620), (50, 2579696), (56, 2303300), (62, 2080400), (70, 1842640), (80, 1612310), (100, 1289848), (112, 1151650), (124, 1040200), (140, 921320), (155, 832160), (160, 806155), (175, 737056), (200, 644924), (217, 594400), (224, 575825), (248, 520100), (280, 460660), (310, 416080), (350, 368528), (400, 322462), (434, 297200), (496, 260050), (560, 230330), (620, 208040), (700, 184264), (743, 173600), (775, 166432), (800, 161231), (868, 148600), (992, 130025), (1085, 118880), (1120, 115165), (1240, 104020), (1400, 92132), (1486, 86800), (1550, 83216), (1736, 74300), (2170, 59440), (2480, 52010), (2800, 46066), (2972, 43400), (3100, 41608), (3472, 37150), (3715, 34720), (4340, 29720), (4960, 26005), (5201, 24800), (5425, 23776), (5600, 23033), (5944, 21700), (6200, 20804), (6944, 18575), (7430, 17360), (8680, 14860), (10402, 12400), (10850, 11888)]