725307220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:673

約数の個数: 96

約数和(自身を含む): 1715116032

約数和(自身を除く): 989808812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 191, 205, 220, 382, 410, 421, 451, 764, 820, 842, 902, 955, 1684, 1804, 1910, 2101, 2105, 2255, 3820, 4202, 4210, 4510, 4631, 7831, 8404, 8420, 9020, 9262, 10505, 15662, 17261, 18524, 21010, 23155, 31324, 34522, 39155, 42020, 46310, 69044, 78310, 80411, 86141, 86305, 92620, 156620, 160822, 172282, 172610, 189871, 321644, 344564, 345220, 379742, 402055, 430705, 759484, 804110, 861410, 884521, 949355, 1608220, 1722820, 1769042, 1898710, 3296851, 3538084, 3797420, 4422605, 6593702, 8845210, 13187404, 16484255, 17690420, 32968510, 36265361, 65937020, 72530722, 145061444, 181326805, 362653610, 725307220]

約数ペア:

[(1, 725307220), (2, 362653610), (4, 181326805), (5, 145061444), (10, 72530722), (11, 65937020), (20, 36265361), (22, 32968510), (41, 17690420), (44, 16484255), (55, 13187404), (82, 8845210), (110, 6593702), (164, 4422605), (191, 3797420), (205, 3538084), (220, 3296851), (382, 1898710), (410, 1769042), (421, 1722820), (451, 1608220), (764, 949355), (820, 884521), (842, 861410), (902, 804110), (955, 759484), (1684, 430705), (1804, 402055), (1910, 379742), (2101, 345220), (2105, 344564), (2255, 321644), (3820, 189871), (4202, 172610), (4210, 172282), (4510, 160822), (4631, 156620), (7831, 92620), (8404, 86305), (8420, 86141), (9020, 80411), (9262, 78310), (10505, 69044), (15662, 46310), (17261, 42020), (18524, 39155), (21010, 34522), (23155, 31324)]