40938040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:473

約数の個数: 128

約数和(自身を含む): 114851520

約数和(自身を除く): 73913480

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 17, 20, 22, 26, 34, 40, 44, 52, 55, 65, 68, 85, 88, 104, 110, 130, 136, 143, 170, 187, 220, 221, 260, 286, 340, 374, 421, 440, 442, 520, 572, 680, 715, 748, 842, 884, 935, 1105, 1144, 1430, 1496, 1684, 1768, 1870, 2105, 2210, 2431, 2860, 3368, 3740, 4210, 4420, 4631, 4862, 5473, 5720, 7157, 7480, 8420, 8840, 9262, 9724, 10946, 12155, 14314, 16840, 18524, 19448, 21892, 23155, 24310, 27365, 28628, 35785, 37048, 43784, 46310, 48620, 54730, 57256, 60203, 71570, 78727, 92620, 93041, 97240, 109460, 120406, 143140, 157454, 185240, 186082, 218920, 240812, 286280, 301015, 314908, 372164, 393635, 465205, 481624, 602030, 629816, 744328, 787270, 930410, 1023451, 1204060, 1574540, 1860820, 2046902, 2408120, 3149080, 3721640, 4093804, 5117255, 8187608, 10234510, 20469020, 40938040]

約数ペア:

[(1, 40938040), (2, 20469020), (4, 10234510), (5, 8187608), (8, 5117255), (10, 4093804), (11, 3721640), (13, 3149080), (17, 2408120), (20, 2046902), (22, 1860820), (26, 1574540), (34, 1204060), (40, 1023451), (44, 930410), (52, 787270), (55, 744328), (65, 629816), (68, 602030), (85, 481624), (88, 465205), (104, 393635), (110, 372164), (130, 314908), (136, 301015), (143, 286280), (170, 240812), (187, 218920), (220, 186082), (221, 185240), (260, 157454), (286, 143140), (340, 120406), (374, 109460), (421, 97240), (440, 93041), (442, 92620), (520, 78727), (572, 71570), (680, 60203), (715, 57256), (748, 54730), (842, 48620), (884, 46310), (935, 43784), (1105, 37048), (1144, 35785), (1430, 28628), (1496, 27365), (1684, 24310), (1768, 23155), (1870, 21892), (2105, 19448), (2210, 18524), (2431, 16840), (2860, 14314), (3368, 12155), (3740, 10946), (4210, 9724), (4420, 9262), (4631, 8840), (4862, 8420), (5473, 7480), (5720, 7157)]