1231815720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:755

約数の個数: 128

約数和(自身を含む): 3752259840

約数和(自身を除く): 2520444120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 151, 157, 302, 314, 433, 453, 471, 604, 628, 755, 785, 866, 906, 942, 1208, 1256, 1299, 1510, 1570, 1732, 1812, 1884, 2165, 2265, 2355, 2598, 3020, 3140, 3464, 3624, 3768, 4330, 4530, 4710, 5196, 6040, 6280, 6495, 8660, 9060, 9420, 10392, 12990, 17320, 18120, 18840, 23707, 25980, 47414, 51960, 65383, 67981, 71121, 94828, 118535, 130766, 135962, 142242, 189656, 196149, 203943, 237070, 261532, 271924, 284484, 326915, 339905, 355605, 392298, 407886, 474140, 523064, 543848, 568968, 653830, 679810, 711210, 784596, 815772, 948280, 980745, 1019715, 1307660, 1359620, 1422420, 1569192, 1631544, 1961490, 2039430, 2615320, 2719240, 2844840, 3922980, 4078860, 7845960, 8157720, 10265131, 20530262, 30795393, 41060524, 51325655, 61590786, 82121048, 102651310, 123181572, 153976965, 205302620, 246363144, 307953930, 410605240, 615907860, 1231815720]

約数ペア:

[(1, 1231815720), (2, 615907860), (3, 410605240), (4, 307953930), (5, 246363144), (6, 205302620), (8, 153976965), (10, 123181572), (12, 102651310), (15, 82121048), (20, 61590786), (24, 51325655), (30, 41060524), (40, 30795393), (60, 20530262), (120, 10265131), (151, 8157720), (157, 7845960), (302, 4078860), (314, 3922980), (433, 2844840), (453, 2719240), (471, 2615320), (604, 2039430), (628, 1961490), (755, 1631544), (785, 1569192), (866, 1422420), (906, 1359620), (942, 1307660), (1208, 1019715), (1256, 980745), (1299, 948280), (1510, 815772), (1570, 784596), (1732, 711210), (1812, 679810), (1884, 653830), (2165, 568968), (2265, 543848), (2355, 523064), (2598, 474140), (3020, 407886), (3140, 392298), (3464, 355605), (3624, 339905), (3768, 326915), (4330, 284484), (4530, 271924), (4710, 261532), (5196, 237070), (6040, 203943), (6280, 196149), (6495, 189656), (8660, 142242), (9060, 135962), (9420, 130766), (10392, 118535), (12990, 94828), (17320, 71121), (18120, 67981), (18840, 65383), (23707, 51960), (25980, 47414)]