13370920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 31933440

約数和(自身を除く): 18562520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 263, 310, 328, 410, 526, 620, 820, 1052, 1240, 1271, 1315, 1640, 2104, 2542, 2630, 5084, 5260, 6355, 8153, 10168, 10520, 10783, 12710, 16306, 21566, 25420, 32612, 40765, 43132, 50840, 53915, 65224, 81530, 86264, 107830, 163060, 215660, 326120, 334273, 431320, 668546, 1337092, 1671365, 2674184, 3342730, 6685460, 13370920]

約数ペア:

[(1, 13370920), (2, 6685460), (4, 3342730), (5, 2674184), (8, 1671365), (10, 1337092), (20, 668546), (31, 431320), (40, 334273), (41, 326120), (62, 215660), (82, 163060), (124, 107830), (155, 86264), (164, 81530), (205, 65224), (248, 53915), (263, 50840), (310, 43132), (328, 40765), (410, 32612), (526, 25420), (620, 21566), (820, 16306), (1052, 12710), (1240, 10783), (1271, 10520), (1315, 10168), (1640, 8153), (2104, 6355), (2542, 5260), (2630, 5084)]