220036760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2909}}^1$

素因数の和:3012

約数の個数: 64

約数和(自身を含む): 519609600

約数和(自身を除く): 299572840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1220, 1240, 1891, 2440, 2909, 3782, 5818, 7564, 9455, 11636, 14545, 15128, 18910, 23272, 29090, 37820, 58180, 75640, 90179, 116360, 177449, 180358, 354898, 360716, 450895, 709796, 721432, 887245, 901790, 1419592, 1774490, 1803580, 3548980, 3607160, 5500919, 7097960, 11001838, 22003676, 27504595, 44007352, 55009190, 110018380, 220036760]

約数ペア:

[(1, 220036760), (2, 110018380), (4, 55009190), (5, 44007352), (8, 27504595), (10, 22003676), (20, 11001838), (31, 7097960), (40, 5500919), (61, 3607160), (62, 3548980), (122, 1803580), (124, 1774490), (155, 1419592), (244, 901790), (248, 887245), (305, 721432), (310, 709796), (488, 450895), (610, 360716), (620, 354898), (1220, 180358), (1240, 177449), (1891, 116360), (2440, 90179), (2909, 75640), (3782, 58180), (5818, 37820), (7564, 29090), (9455, 23272), (11636, 18910), (14545, 15128)]