29980840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 70171920

約数和(自身を除く): 40191080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 101, 164, 181, 202, 205, 328, 362, 404, 410, 505, 724, 808, 820, 905, 1010, 1448, 1640, 1810, 2020, 3620, 4040, 4141, 7240, 7421, 8282, 14842, 16564, 18281, 20705, 29684, 33128, 36562, 37105, 41410, 59368, 73124, 74210, 82820, 91405, 146248, 148420, 165640, 182810, 296840, 365620, 731240, 749521, 1499042, 2998084, 3747605, 5996168, 7495210, 14990420, 29980840]

約数ペア:

[(1, 29980840), (2, 14990420), (4, 7495210), (5, 5996168), (8, 3747605), (10, 2998084), (20, 1499042), (40, 749521), (41, 731240), (82, 365620), (101, 296840), (164, 182810), (181, 165640), (202, 148420), (205, 146248), (328, 91405), (362, 82820), (404, 74210), (410, 73124), (505, 59368), (724, 41410), (808, 37105), (820, 36562), (905, 33128), (1010, 29684), (1448, 20705), (1640, 18281), (1810, 16564), (2020, 14842), (3620, 8282), (4040, 7421), (4141, 7240)]