16320880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6581}}^1$

素因数の和:6625

約数の個数: 40

約数和(自身を含む): 39176064

約数和(自身を除く): 22855184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 6581, 13162, 26324, 32905, 52648, 65810, 105296, 131620, 204011, 263240, 408022, 526480, 816044, 1020055, 1632088, 2040110, 3264176, 4080220, 8160440, 16320880]

約数ペア:

[(1, 16320880), (2, 8160440), (4, 4080220), (5, 3264176), (8, 2040110), (10, 1632088), (16, 1020055), (20, 816044), (31, 526480), (40, 408022), (62, 263240), (80, 204011), (124, 131620), (155, 105296), (248, 65810), (310, 52648), (496, 32905), (620, 26324), (1240, 13162), (2480, 6581)]