90217820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{8369}}^1$

素因数の和:8403

約数の個数: 72

約数和(自身を含む): 240453360

約数和(自身を除く): 150235540

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 8369, 10780, 16738, 33476, 41845, 58583, 83690, 92059, 117166, 167380, 184118, 234332, 292915, 368236, 410081, 460295, 585830, 644413, 820162, 920590, 1171660, 1288826, 1640324, 1841180, 2050405, 2577652, 3222065, 4100810, 4510891, 6444130, 8201620, 9021782, 12888260, 18043564, 22554455, 45108910, 90217820]

約数ペア:

[(1, 90217820), (2, 45108910), (4, 22554455), (5, 18043564), (7, 12888260), (10, 9021782), (11, 8201620), (14, 6444130), (20, 4510891), (22, 4100810), (28, 3222065), (35, 2577652), (44, 2050405), (49, 1841180), (55, 1640324), (70, 1288826), (77, 1171660), (98, 920590), (110, 820162), (140, 644413), (154, 585830), (196, 460295), (220, 410081), (245, 368236), (308, 292915), (385, 234332), (490, 184118), (539, 167380), (770, 117166), (980, 92059), (1078, 83690), (1540, 58583), (2156, 41845), (2695, 33476), (5390, 16738), (8369, 10780)]