29808680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1831}}^1$

素因数の和:1890

約数の個数: 64

約数和(自身を含む): 75185280

約数和(自身を除く): 45376600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 1831, 2035, 3256, 3662, 4070, 7324, 8140, 9155, 14648, 16280, 18310, 20141, 36620, 40282, 67747, 73240, 80564, 100705, 135494, 161128, 201410, 270988, 338735, 402820, 541976, 677470, 745217, 805640, 1354940, 1490434, 2709880, 2980868, 3726085, 5961736, 7452170, 14904340, 29808680]

約数ペア:

[(1, 29808680), (2, 14904340), (4, 7452170), (5, 5961736), (8, 3726085), (10, 2980868), (11, 2709880), (20, 1490434), (22, 1354940), (37, 805640), (40, 745217), (44, 677470), (55, 541976), (74, 402820), (88, 338735), (110, 270988), (148, 201410), (185, 161128), (220, 135494), (296, 100705), (370, 80564), (407, 73240), (440, 67747), (740, 40282), (814, 36620), (1480, 20141), (1628, 18310), (1831, 16280), (2035, 14648), (3256, 9155), (3662, 8140), (4070, 7324)]