31156240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:800

約数の個数: 80

約数和(自身を含む): 79280640

約数和(自身を除く): 48124400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 739, 1054, 1240, 1360, 1478, 2108, 2480, 2635, 2956, 3695, 4216, 5270, 5912, 7390, 8432, 10540, 11824, 12563, 14780, 21080, 22909, 25126, 29560, 42160, 45818, 50252, 59120, 62815, 91636, 100504, 114545, 125630, 183272, 201008, 229090, 251260, 366544, 389453, 458180, 502520, 778906, 916360, 1005040, 1557812, 1832720, 1947265, 3115624, 3894530, 6231248, 7789060, 15578120, 31156240]

約数ペア:

[(1, 31156240), (2, 15578120), (4, 7789060), (5, 6231248), (8, 3894530), (10, 3115624), (16, 1947265), (17, 1832720), (20, 1557812), (31, 1005040), (34, 916360), (40, 778906), (62, 502520), (68, 458180), (80, 389453), (85, 366544), (124, 251260), (136, 229090), (155, 201008), (170, 183272), (248, 125630), (272, 114545), (310, 100504), (340, 91636), (496, 62815), (527, 59120), (620, 50252), (680, 45818), (739, 42160), (1054, 29560), (1240, 25126), (1360, 22909), (1478, 21080), (2108, 14780), (2480, 12563), (2635, 11824), (2956, 10540), (3695, 8432), (4216, 7390), (5270, 5912)]