1228760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 3175200

約数和(自身を除く): 1946440

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 139, 170, 221, 260, 278, 340, 442, 520, 556, 680, 695, 884, 1105, 1112, 1390, 1768, 1807, 2210, 2363, 2780, 3614, 4420, 4726, 5560, 7228, 8840, 9035, 9452, 11815, 14456, 18070, 18904, 23630, 30719, 36140, 47260, 61438, 72280, 94520, 122876, 153595, 245752, 307190, 614380, 1228760]

約数ペア:

[(1, 1228760), (2, 614380), (4, 307190), (5, 245752), (8, 153595), (10, 122876), (13, 94520), (17, 72280), (20, 61438), (26, 47260), (34, 36140), (40, 30719), (52, 23630), (65, 18904), (68, 18070), (85, 14456), (104, 11815), (130, 9452), (136, 9035), (139, 8840), (170, 7228), (221, 5560), (260, 4726), (278, 4420), (340, 3614), (442, 2780), (520, 2363), (556, 2210), (680, 1807), (695, 1768), (884, 1390), (1105, 1112)]