16562840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{397}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 42984000

約数和(自身を除く): 26421160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 397, 596, 745, 794, 1043, 1192, 1490, 1588, 1985, 2086, 2779, 2980, 3176, 3970, 4172, 5215, 5558, 5960, 7940, 8344, 10430, 11116, 13895, 15880, 20860, 22232, 27790, 41720, 55580, 59153, 111160, 118306, 236612, 295765, 414071, 473224, 591530, 828142, 1183060, 1656284, 2070355, 2366120, 3312568, 4140710, 8281420, 16562840]

約数ペア:

[(1, 16562840), (2, 8281420), (4, 4140710), (5, 3312568), (7, 2366120), (8, 2070355), (10, 1656284), (14, 1183060), (20, 828142), (28, 591530), (35, 473224), (40, 414071), (56, 295765), (70, 236612), (140, 118306), (149, 111160), (280, 59153), (298, 55580), (397, 41720), (596, 27790), (745, 22232), (794, 20860), (1043, 15880), (1192, 13895), (1490, 11116), (1588, 10430), (1985, 8344), (2086, 7940), (2779, 5960), (2980, 5558), (3176, 5215), (3970, 4172)]