164101600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:573

約数の個数: 144

約数和(自身を含む): 446221440

約数和(自身を除く): 282119840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 260, 310, 325, 400, 403, 416, 496, 509, 520, 620, 650, 775, 800, 806, 992, 1018, 1040, 1240, 1300, 1550, 1612, 2015, 2036, 2080, 2480, 2545, 2600, 3100, 3224, 4030, 4072, 4960, 5090, 5200, 6200, 6448, 6617, 8060, 8144, 10075, 10180, 10400, 12400, 12725, 12896, 13234, 15779, 16120, 16288, 20150, 20360, 24800, 25450, 26468, 31558, 32240, 33085, 40300, 40720, 50900, 52936, 63116, 64480, 66170, 78895, 80600, 81440, 101800, 105872, 126232, 132340, 157790, 161200, 165425, 203600, 205127, 211744, 252464, 264680, 315580, 322400, 330850, 394475, 407200, 410254, 504928, 529360, 631160, 661700, 788950, 820508, 1025635, 1058720, 1262320, 1323400, 1577900, 1641016, 2051270, 2524640, 2646800, 3155800, 3282032, 4102540, 5128175, 5293600, 6311600, 6564064, 8205080, 10256350, 12623200, 16410160, 20512700, 32820320, 41025400, 82050800, 164101600]

約数ペア:

[(1, 164101600), (2, 82050800), (4, 41025400), (5, 32820320), (8, 20512700), (10, 16410160), (13, 12623200), (16, 10256350), (20, 8205080), (25, 6564064), (26, 6311600), (31, 5293600), (32, 5128175), (40, 4102540), (50, 3282032), (52, 3155800), (62, 2646800), (65, 2524640), (80, 2051270), (100, 1641016), (104, 1577900), (124, 1323400), (130, 1262320), (155, 1058720), (160, 1025635), (200, 820508), (208, 788950), (248, 661700), (260, 631160), (310, 529360), (325, 504928), (400, 410254), (403, 407200), (416, 394475), (496, 330850), (509, 322400), (520, 315580), (620, 264680), (650, 252464), (775, 211744), (800, 205127), (806, 203600), (992, 165425), (1018, 161200), (1040, 157790), (1240, 132340), (1300, 126232), (1550, 105872), (1612, 101800), (2015, 81440), (2036, 80600), (2080, 78895), (2480, 66170), (2545, 64480), (2600, 63116), (3100, 52936), (3224, 50900), (4030, 40720), (4072, 40300), (4960, 33085), (5090, 32240), (5200, 31558), (6200, 26468), (6448, 25450), (6617, 24800), (8060, 20360), (8144, 20150), (10075, 16288), (10180, 16120), (10400, 15779), (12400, 13234), (12725, 12896)]