817960

素因数分解:

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

素因数の和:59

約数の個数: 72

約数和(自身を含む): 2190510

約数和(自身を除く): 1372550

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 121, 130, 143, 169, 220, 242, 260, 286, 338, 440, 484, 520, 572, 605, 676, 715, 845, 968, 1144, 1210, 1352, 1430, 1573, 1690, 1859, 2420, 2860, 3146, 3380, 3718, 4840, 5720, 6292, 6760, 7436, 7865, 9295, 12584, 14872, 15730, 18590, 20449, 31460, 37180, 40898, 62920, 74360, 81796, 102245, 163592, 204490, 408980, 817960]

約数ペア:

[(1, 817960), (2, 408980), (4, 204490), (5, 163592), (8, 102245), (10, 81796), (11, 74360), (13, 62920), (20, 40898), (22, 37180), (26, 31460), (40, 20449), (44, 18590), (52, 15730), (55, 14872), (65, 12584), (88, 9295), (104, 7865), (110, 7436), (121, 6760), (130, 6292), (143, 5720), (169, 4840), (220, 3718), (242, 3380), (260, 3146), (286, 2860), (338, 2420), (440, 1859), (484, 1690), (520, 1573), (572, 1430), (605, 1352), (676, 1210), (715, 1144), (845, 968)]