17978480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 45934560

約数和(自身を除く): 27956080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 59, 65, 80, 104, 118, 130, 208, 236, 260, 293, 295, 472, 520, 586, 590, 767, 944, 1040, 1172, 1180, 1465, 1534, 2344, 2360, 2930, 3068, 3809, 3835, 4688, 4720, 5860, 6136, 7618, 7670, 11720, 12272, 15236, 15340, 17287, 19045, 23440, 30472, 30680, 34574, 38090, 60944, 61360, 69148, 76180, 86435, 138296, 152360, 172870, 224731, 276592, 304720, 345740, 449462, 691480, 898924, 1123655, 1382960, 1797848, 2247310, 3595696, 4494620, 8989240, 17978480]

約数ペア:

[(1, 17978480), (2, 8989240), (4, 4494620), (5, 3595696), (8, 2247310), (10, 1797848), (13, 1382960), (16, 1123655), (20, 898924), (26, 691480), (40, 449462), (52, 345740), (59, 304720), (65, 276592), (80, 224731), (104, 172870), (118, 152360), (130, 138296), (208, 86435), (236, 76180), (260, 69148), (293, 61360), (295, 60944), (472, 38090), (520, 34574), (586, 30680), (590, 30472), (767, 23440), (944, 19045), (1040, 17287), (1172, 15340), (1180, 15236), (1465, 12272), (1534, 11720), (2344, 7670), (2360, 7618), (2930, 6136), (3068, 5860), (3809, 4720), (3835, 4688)]