259370800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1671

約数の個数: 120

約数和(自身を含む): 693150080

約数和(自身を除く): 433779280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 200, 208, 248, 260, 310, 325, 400, 403, 496, 520, 620, 650, 775, 806, 1040, 1240, 1300, 1550, 1609, 1612, 2015, 2480, 2600, 3100, 3218, 3224, 4030, 5200, 6200, 6436, 6448, 8045, 8060, 10075, 12400, 12872, 16090, 16120, 20150, 20917, 25744, 32180, 32240, 40225, 40300, 41834, 49879, 64360, 80450, 80600, 83668, 99758, 104585, 128720, 160900, 161200, 167336, 199516, 209170, 249395, 321800, 334672, 399032, 418340, 498790, 522925, 643600, 648427, 798064, 836680, 997580, 1045850, 1246975, 1296854, 1673360, 1995160, 2091700, 2493950, 2593708, 3242135, 3990320, 4183400, 4987900, 5187416, 6484270, 8366800, 9975800, 10374832, 12968540, 16210675, 19951600, 25937080, 32421350, 51874160, 64842700, 129685400, 259370800]

約数ペア:

[(1, 259370800), (2, 129685400), (4, 64842700), (5, 51874160), (8, 32421350), (10, 25937080), (13, 19951600), (16, 16210675), (20, 12968540), (25, 10374832), (26, 9975800), (31, 8366800), (40, 6484270), (50, 5187416), (52, 4987900), (62, 4183400), (65, 3990320), (80, 3242135), (100, 2593708), (104, 2493950), (124, 2091700), (130, 1995160), (155, 1673360), (200, 1296854), (208, 1246975), (248, 1045850), (260, 997580), (310, 836680), (325, 798064), (400, 648427), (403, 643600), (496, 522925), (520, 498790), (620, 418340), (650, 399032), (775, 334672), (806, 321800), (1040, 249395), (1240, 209170), (1300, 199516), (1550, 167336), (1609, 161200), (1612, 160900), (2015, 128720), (2480, 104585), (2600, 99758), (3100, 83668), (3218, 80600), (3224, 80450), (4030, 64360), (5200, 49879), (6200, 41834), (6436, 40300), (6448, 40225), (8045, 32240), (8060, 32180), (10075, 25744), (12400, 20917), (12872, 20150), (16090, 16120)]