88788980

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{43}}^2$

素因数の和:123

約数の個数: 90

約数和(自身を含む): 222696306

約数和(自身を除く): 133907326

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 343, 430, 490, 602, 686, 860, 980, 1204, 1372, 1505, 1715, 1849, 2107, 2401, 3010, 3430, 3698, 4214, 4802, 6020, 6860, 7396, 8428, 9245, 9604, 10535, 12005, 12943, 14749, 18490, 21070, 24010, 25886, 29498, 36980, 42140, 48020, 51772, 58996, 64715, 73745, 90601, 103243, 129430, 147490, 181202, 206486, 258860, 294980, 362404, 412972, 453005, 516215, 634207, 906010, 1032430, 1268414, 1812020, 2064860, 2536828, 3171035, 4439449, 6342070, 8878898, 12684140, 17757796, 22197245, 44394490, 88788980]

約数ペア:

[(1, 88788980), (2, 44394490), (4, 22197245), (5, 17757796), (7, 12684140), (10, 8878898), (14, 6342070), (20, 4439449), (28, 3171035), (35, 2536828), (43, 2064860), (49, 1812020), (70, 1268414), (86, 1032430), (98, 906010), (140, 634207), (172, 516215), (196, 453005), (215, 412972), (245, 362404), (301, 294980), (343, 258860), (430, 206486), (490, 181202), (602, 147490), (686, 129430), (860, 103243), (980, 90601), (1204, 73745), (1372, 64715), (1505, 58996), (1715, 51772), (1849, 48020), (2107, 42140), (2401, 36980), (3010, 29498), (3430, 25886), (3698, 24010), (4214, 21070), (4802, 18490), (6020, 14749), (6860, 12943), (7396, 12005), (8428, 10535), (9245, 9604)]