31685940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1231}}^1$

素因数の和:1270

約数の個数: 144

約数和(自身を含む): 113008896

約数和(自身を除く): 81322956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 660, 715, 780, 858, 990, 1170, 1231, 1287, 1430, 1716, 1980, 2145, 2340, 2462, 2574, 2860, 3693, 4290, 4924, 5148, 6155, 6435, 7386, 8580, 11079, 12310, 12870, 13541, 14772, 16003, 18465, 22158, 24620, 25740, 27082, 32006, 36930, 40623, 44316, 48009, 54164, 55395, 64012, 67705, 73860, 80015, 81246, 96018, 110790, 121869, 135410, 144027, 160030, 162492, 176033, 192036, 203115, 221580, 240045, 243738, 270820, 288054, 320060, 352066, 406230, 480090, 487476, 528099, 576108, 609345, 704132, 720135, 812460, 880165, 960180, 1056198, 1218690, 1440270, 1584297, 1760330, 2112396, 2437380, 2640495, 2880540, 3168594, 3520660, 5280990, 6337188, 7921485, 10561980, 15842970, 31685940]

約数ペア:

[(1, 31685940), (2, 15842970), (3, 10561980), (4, 7921485), (5, 6337188), (6, 5280990), (9, 3520660), (10, 3168594), (11, 2880540), (12, 2640495), (13, 2437380), (15, 2112396), (18, 1760330), (20, 1584297), (22, 1440270), (26, 1218690), (30, 1056198), (33, 960180), (36, 880165), (39, 812460), (44, 720135), (45, 704132), (52, 609345), (55, 576108), (60, 528099), (65, 487476), (66, 480090), (78, 406230), (90, 352066), (99, 320060), (110, 288054), (117, 270820), (130, 243738), (132, 240045), (143, 221580), (156, 203115), (165, 192036), (180, 176033), (195, 162492), (198, 160030), (220, 144027), (234, 135410), (260, 121869), (286, 110790), (330, 96018), (390, 81246), (396, 80015), (429, 73860), (468, 67705), (495, 64012), (572, 55395), (585, 54164), (660, 48009), (715, 44316), (780, 40623), (858, 36930), (990, 32006), (1170, 27082), (1231, 25740), (1287, 24620), (1430, 22158), (1716, 18465), (1980, 16003), (2145, 14772), (2340, 13541), (2462, 12870), (2574, 12310), (2860, 11079), (3693, 8580), (4290, 7386), (4924, 6435), (5148, 6155)]