31111740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{827}}^1$

素因数の和:872

約数の個数: 144

約数和(自身を含む): 108501120

約数和(自身を除く): 77389380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 495, 570, 627, 660, 684, 827, 836, 855, 990, 1045, 1140, 1254, 1654, 1710, 1881, 1980, 2090, 2481, 2508, 3135, 3308, 3420, 3762, 4135, 4180, 4962, 6270, 7443, 7524, 8270, 9097, 9405, 9924, 12405, 12540, 14886, 15713, 16540, 18194, 18810, 24810, 27291, 29772, 31426, 36388, 37215, 37620, 45485, 47139, 49620, 54582, 62852, 74430, 78565, 81873, 90970, 94278, 109164, 136455, 141417, 148860, 157130, 163746, 172843, 181940, 188556, 235695, 272910, 282834, 314260, 327492, 345686, 409365, 471390, 518529, 545820, 565668, 691372, 707085, 818730, 864215, 942780, 1037058, 1414170, 1555587, 1637460, 1728430, 2074116, 2592645, 2828340, 3111174, 3456860, 5185290, 6222348, 7777935, 10370580, 15555870, 31111740]

約数ペア:

[(1, 31111740), (2, 15555870), (3, 10370580), (4, 7777935), (5, 6222348), (6, 5185290), (9, 3456860), (10, 3111174), (11, 2828340), (12, 2592645), (15, 2074116), (18, 1728430), (19, 1637460), (20, 1555587), (22, 1414170), (30, 1037058), (33, 942780), (36, 864215), (38, 818730), (44, 707085), (45, 691372), (55, 565668), (57, 545820), (60, 518529), (66, 471390), (76, 409365), (90, 345686), (95, 327492), (99, 314260), (110, 282834), (114, 272910), (132, 235695), (165, 188556), (171, 181940), (180, 172843), (190, 163746), (198, 157130), (209, 148860), (220, 141417), (228, 136455), (285, 109164), (330, 94278), (342, 90970), (380, 81873), (396, 78565), (418, 74430), (495, 62852), (570, 54582), (627, 49620), (660, 47139), (684, 45485), (827, 37620), (836, 37215), (855, 36388), (990, 31426), (1045, 29772), (1140, 27291), (1254, 24810), (1654, 18810), (1710, 18194), (1881, 16540), (1980, 15713), (2090, 14886), (2481, 12540), (2508, 12405), (3135, 9924), (3308, 9405), (3420, 9097), (3762, 8270), (4135, 7524), (4180, 7443), (4962, 6270)]