1815204820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{634687}}^1$

素因数の和:634720

約数の個数: 48

約数和(自身を含む): 4478358528

約数和(自身を除く): 2663153708

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 634687, 1269374, 2538748, 3173435, 6346870, 6981557, 8250931, 12693740, 13963114, 16501862, 27926228, 33003724, 34907785, 41254655, 69815570, 82509310, 90760241, 139631140, 165018620, 181520482, 363040964, 453801205, 907602410, 1815204820]

約数ペア:

[(1, 1815204820), (2, 907602410), (4, 453801205), (5, 363040964), (10, 181520482), (11, 165018620), (13, 139631140), (20, 90760241), (22, 82509310), (26, 69815570), (44, 41254655), (52, 34907785), (55, 33003724), (65, 27926228), (110, 16501862), (130, 13963114), (143, 12693740), (220, 8250931), (260, 6981557), (286, 6346870), (572, 3173435), (715, 2538748), (1430, 1269374), (2860, 634687)]