31403240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{479}}^1$

素因数の和:650

約数の個数: 64

約数和(自身を含む): 77760000

約数和(自身を除く): 46356760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 149, 220, 298, 440, 479, 596, 745, 958, 1192, 1490, 1639, 1916, 2395, 2980, 3278, 3832, 4790, 5269, 5960, 6556, 8195, 9580, 10538, 13112, 16390, 19160, 21076, 26345, 32780, 42152, 52690, 65560, 71371, 105380, 142742, 210760, 285484, 356855, 570968, 713710, 785081, 1427420, 1570162, 2854840, 3140324, 3925405, 6280648, 7850810, 15701620, 31403240]

約数ペア:

[(1, 31403240), (2, 15701620), (4, 7850810), (5, 6280648), (8, 3925405), (10, 3140324), (11, 2854840), (20, 1570162), (22, 1427420), (40, 785081), (44, 713710), (55, 570968), (88, 356855), (110, 285484), (149, 210760), (220, 142742), (298, 105380), (440, 71371), (479, 65560), (596, 52690), (745, 42152), (958, 32780), (1192, 26345), (1490, 21076), (1639, 19160), (1916, 16390), (2395, 13112), (2980, 10538), (3278, 9580), (3832, 8195), (4790, 6556), (5269, 5960)]