261281640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70237}}^1$

素因数の和:70282

約数の個数: 64

約数和(自身を含む): 809141760

約数和(自身を除く): 547860120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 70237, 140474, 210711, 280948, 351185, 421422, 561896, 702370, 842844, 1053555, 1404740, 1685688, 2107110, 2177347, 2809480, 4214220, 4354694, 6532041, 8428440, 8709388, 10886735, 13064082, 17418776, 21773470, 26128164, 32660205, 43546940, 52256328, 65320410, 87093880, 130640820, 261281640]

約数ペア:

[(1, 261281640), (2, 130640820), (3, 87093880), (4, 65320410), (5, 52256328), (6, 43546940), (8, 32660205), (10, 26128164), (12, 21773470), (15, 17418776), (20, 13064082), (24, 10886735), (30, 8709388), (31, 8428440), (40, 6532041), (60, 4354694), (62, 4214220), (93, 2809480), (120, 2177347), (124, 2107110), (155, 1685688), (186, 1404740), (248, 1053555), (310, 842844), (372, 702370), (465, 561896), (620, 421422), (744, 351185), (930, 280948), (1240, 210711), (1860, 140474), (3720, 70237)]