31241340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{79}}^1$

素因数の和:133

約数の個数: 144

約数和(自身を含む): 103958400

約数和(自身を除く): 72717060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 79, 90, 117, 130, 156, 158, 169, 180, 195, 234, 237, 260, 316, 338, 390, 395, 468, 474, 507, 585, 676, 711, 780, 790, 845, 948, 1014, 1027, 1170, 1185, 1422, 1521, 1580, 1690, 2028, 2054, 2197, 2340, 2370, 2535, 2844, 3042, 3081, 3380, 3555, 4108, 4394, 4740, 5070, 5135, 6084, 6162, 6591, 7110, 7605, 8788, 9243, 10140, 10270, 10985, 12324, 13182, 13351, 14220, 15210, 15405, 18486, 19773, 20540, 21970, 26364, 26702, 30420, 30810, 32955, 36972, 39546, 40053, 43940, 46215, 53404, 61620, 65910, 66755, 79092, 80106, 92430, 98865, 120159, 131820, 133510, 160212, 173563, 184860, 197730, 200265, 240318, 267020, 347126, 395460, 400530, 480636, 520689, 600795, 694252, 801060, 867815, 1041378, 1201590, 1562067, 1735630, 2082756, 2403180, 2603445, 3124134, 3471260, 5206890, 6248268, 7810335, 10413780, 15620670, 31241340]

約数ペア:

[(1, 31241340), (2, 15620670), (3, 10413780), (4, 7810335), (5, 6248268), (6, 5206890), (9, 3471260), (10, 3124134), (12, 2603445), (13, 2403180), (15, 2082756), (18, 1735630), (20, 1562067), (26, 1201590), (30, 1041378), (36, 867815), (39, 801060), (45, 694252), (52, 600795), (60, 520689), (65, 480636), (78, 400530), (79, 395460), (90, 347126), (117, 267020), (130, 240318), (156, 200265), (158, 197730), (169, 184860), (180, 173563), (195, 160212), (234, 133510), (237, 131820), (260, 120159), (316, 98865), (338, 92430), (390, 80106), (395, 79092), (468, 66755), (474, 65910), (507, 61620), (585, 53404), (676, 46215), (711, 43940), (780, 40053), (790, 39546), (845, 36972), (948, 32955), (1014, 30810), (1027, 30420), (1170, 26702), (1185, 26364), (1422, 21970), (1521, 20540), (1580, 19773), (1690, 18486), (2028, 15405), (2054, 15210), (2197, 14220), (2340, 13351), (2370, 13182), (2535, 12324), (2844, 10985), (3042, 10270), (3081, 10140), (3380, 9243), (3555, 8788), (4108, 7605), (4394, 7110), (4740, 6591), (5070, 6162), (5135, 6084)]