31517820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{331}}^1$

素因数の和:392

約数の個数: 108

約数和(自身を含む): 100243416

約数和(自身を除く): 68725596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 331, 345, 414, 460, 529, 662, 690, 828, 993, 1035, 1058, 1324, 1380, 1587, 1655, 1986, 2070, 2116, 2645, 2979, 3174, 3310, 3972, 4140, 4761, 4965, 5290, 5958, 6348, 6620, 7613, 7935, 9522, 9930, 10580, 11916, 14895, 15226, 15870, 19044, 19860, 22839, 23805, 29790, 30452, 31740, 38065, 45678, 47610, 59580, 68517, 76130, 91356, 95220, 114195, 137034, 152260, 175099, 228390, 274068, 342585, 350198, 456780, 525297, 685170, 700396, 875495, 1050594, 1370340, 1575891, 1750990, 2101188, 2626485, 3151782, 3501980, 5252970, 6303564, 7879455, 10505940, 15758910, 31517820]

約数ペア:

[(1, 31517820), (2, 15758910), (3, 10505940), (4, 7879455), (5, 6303564), (6, 5252970), (9, 3501980), (10, 3151782), (12, 2626485), (15, 2101188), (18, 1750990), (20, 1575891), (23, 1370340), (30, 1050594), (36, 875495), (45, 700396), (46, 685170), (60, 525297), (69, 456780), (90, 350198), (92, 342585), (115, 274068), (138, 228390), (180, 175099), (207, 152260), (230, 137034), (276, 114195), (331, 95220), (345, 91356), (414, 76130), (460, 68517), (529, 59580), (662, 47610), (690, 45678), (828, 38065), (993, 31740), (1035, 30452), (1058, 29790), (1324, 23805), (1380, 22839), (1587, 19860), (1655, 19044), (1986, 15870), (2070, 15226), (2116, 14895), (2645, 11916), (2979, 10580), (3174, 9930), (3310, 9522), (3972, 7935), (4140, 7613), (4761, 6620), (4965, 6348), (5290, 5958)]