2640778400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8191}}^1$

素因数の和:8255

約数の個数: 144

約数和(自身を含む): 7167541248

約数和(自身を除く): 4526762848

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, 520, 620, 650, 775, 800, 806, 992, 1040, 1240, 1300, 1550, 1612, 2015, 2080, 2480, 2600, 3100, 3224, 4030, 4960, 5200, 6200, 6448, 8060, 8191, 10075, 10400, 12400, 12896, 16120, 16382, 20150, 24800, 32240, 32764, 40300, 40955, 64480, 65528, 80600, 81910, 106483, 131056, 161200, 163820, 204775, 212966, 253921, 262112, 322400, 327640, 409550, 425932, 507842, 532415, 655280, 819100, 851864, 1015684, 1064830, 1269605, 1310560, 1638200, 1703728, 2031368, 2129660, 2539210, 2662075, 3276400, 3300973, 3407456, 4062736, 4259320, 5078420, 5324150, 6348025, 6552800, 6601946, 8125472, 8518640, 10156840, 10648300, 12696050, 13203892, 16504865, 17037280, 20313680, 21296600, 25392100, 26407784, 33009730, 40627360, 42593200, 50784200, 52815568, 66019460, 82524325, 85186400, 101568400, 105631136, 132038920, 165048650, 203136800, 264077840, 330097300, 528155680, 660194600, 1320389200, 2640778400]

約数ペア:

[(1, 2640778400), (2, 1320389200), (4, 660194600), (5, 528155680), (8, 330097300), (10, 264077840), (13, 203136800), (16, 165048650), (20, 132038920), (25, 105631136), (26, 101568400), (31, 85186400), (32, 82524325), (40, 66019460), (50, 52815568), (52, 50784200), (62, 42593200), (65, 40627360), (80, 33009730), (100, 26407784), (104, 25392100), (124, 21296600), (130, 20313680), (155, 17037280), (160, 16504865), (200, 13203892), (208, 12696050), (248, 10648300), (260, 10156840), (310, 8518640), (325, 8125472), (400, 6601946), (403, 6552800), (416, 6348025), (496, 5324150), (520, 5078420), (620, 4259320), (650, 4062736), (775, 3407456), (800, 3300973), (806, 3276400), (992, 2662075), (1040, 2539210), (1240, 2129660), (1300, 2031368), (1550, 1703728), (1612, 1638200), (2015, 1310560), (2080, 1269605), (2480, 1064830), (2600, 1015684), (3100, 851864), (3224, 819100), (4030, 655280), (4960, 532415), (5200, 507842), (6200, 425932), (6448, 409550), (8060, 327640), (8191, 322400), (10075, 262112), (10400, 253921), (12400, 212966), (12896, 204775), (16120, 163820), (16382, 161200), (20150, 131056), (24800, 106483), (32240, 81910), (32764, 80600), (40300, 65528), (40955, 64480)]