689080400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{911}}^1$

素因数の和:1021

約数の個数: 120

約数和(自身を含む): 1738841088

約数和(自身を除く): 1049760688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 61, 62, 80, 100, 122, 124, 155, 200, 244, 248, 305, 310, 400, 488, 496, 610, 620, 775, 911, 976, 1220, 1240, 1525, 1550, 1822, 1891, 2440, 2480, 3050, 3100, 3644, 3782, 4555, 4880, 6100, 6200, 7288, 7564, 9110, 9455, 12200, 12400, 14576, 15128, 18220, 18910, 22775, 24400, 28241, 30256, 36440, 37820, 45550, 47275, 55571, 56482, 72880, 75640, 91100, 94550, 111142, 112964, 141205, 151280, 182200, 189100, 222284, 225928, 277855, 282410, 364400, 378200, 444568, 451856, 555710, 564820, 706025, 756400, 889136, 1111420, 1129640, 1389275, 1412050, 1722701, 2222840, 2259280, 2778550, 2824100, 3445402, 4445680, 5557100, 5648200, 6890804, 8613505, 11114200, 11296400, 13781608, 17227010, 22228400, 27563216, 34454020, 43067525, 68908040, 86135050, 137816080, 172270100, 344540200, 689080400]

約数ペア:

[(1, 689080400), (2, 344540200), (4, 172270100), (5, 137816080), (8, 86135050), (10, 68908040), (16, 43067525), (20, 34454020), (25, 27563216), (31, 22228400), (40, 17227010), (50, 13781608), (61, 11296400), (62, 11114200), (80, 8613505), (100, 6890804), (122, 5648200), (124, 5557100), (155, 4445680), (200, 3445402), (244, 2824100), (248, 2778550), (305, 2259280), (310, 2222840), (400, 1722701), (488, 1412050), (496, 1389275), (610, 1129640), (620, 1111420), (775, 889136), (911, 756400), (976, 706025), (1220, 564820), (1240, 555710), (1525, 451856), (1550, 444568), (1822, 378200), (1891, 364400), (2440, 282410), (2480, 277855), (3050, 225928), (3100, 222284), (3644, 189100), (3782, 182200), (4555, 151280), (4880, 141205), (6100, 112964), (6200, 111142), (7288, 94550), (7564, 91100), (9110, 75640), (9455, 72880), (12200, 56482), (12400, 55571), (14576, 47275), (15128, 45550), (18220, 37820), (18910, 36440), (22775, 30256), (24400, 28241)]