157390720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7933}}^1$

素因数の和:7983

約数の個数: 64

約数和(自身を含む): 388448640

約数和(自身を除く): 231057920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 7933, 9920, 15866, 19840, 31732, 39665, 63464, 79330, 126928, 158660, 245923, 253856, 317320, 491846, 507712, 634640, 983692, 1015424, 1229615, 1269280, 1967384, 2459230, 2538560, 3934768, 4918460, 5077120, 7869536, 9836920, 15739072, 19673840, 31478144, 39347680, 78695360, 157390720]

約数ペア:

[(1, 157390720), (2, 78695360), (4, 39347680), (5, 31478144), (8, 19673840), (10, 15739072), (16, 9836920), (20, 7869536), (31, 5077120), (32, 4918460), (40, 3934768), (62, 2538560), (64, 2459230), (80, 1967384), (124, 1269280), (128, 1229615), (155, 1015424), (160, 983692), (248, 634640), (310, 507712), (320, 491846), (496, 317320), (620, 253856), (640, 245923), (992, 158660), (1240, 126928), (1984, 79330), (2480, 63464), (3968, 39665), (4960, 31732), (7933, 19840), (9920, 15866)]