66901720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:536

約数の個数: 64

約数和(自身を含む): 156810240

約数和(自身を除く): 89908520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 163, 248, 310, 326, 331, 620, 652, 662, 815, 1240, 1304, 1324, 1630, 1655, 2648, 3260, 3310, 5053, 6520, 6620, 10106, 10261, 13240, 20212, 20522, 25265, 40424, 41044, 50530, 51305, 53953, 82088, 101060, 102610, 107906, 202120, 205220, 215812, 269765, 410440, 431624, 539530, 1079060, 1672543, 2158120, 3345086, 6690172, 8362715, 13380344, 16725430, 33450860, 66901720]

約数ペア:

[(1, 66901720), (2, 33450860), (4, 16725430), (5, 13380344), (8, 8362715), (10, 6690172), (20, 3345086), (31, 2158120), (40, 1672543), (62, 1079060), (124, 539530), (155, 431624), (163, 410440), (248, 269765), (310, 215812), (326, 205220), (331, 202120), (620, 107906), (652, 102610), (662, 101060), (815, 82088), (1240, 53953), (1304, 51305), (1324, 50530), (1630, 41044), (1655, 40424), (2648, 25265), (3260, 20522), (3310, 20212), (5053, 13240), (6520, 10261), (6620, 10106)]