81624140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:411

約数の個数: 96

約数和(自身を含む): 199402560

約数和(自身を除く): 117778420

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 59, 65, 68, 85, 118, 130, 170, 221, 236, 260, 295, 313, 340, 442, 590, 626, 767, 884, 1003, 1105, 1180, 1252, 1534, 1565, 2006, 2210, 3068, 3130, 3835, 4012, 4069, 4420, 5015, 5321, 6260, 7670, 8138, 10030, 10642, 13039, 15340, 16276, 18467, 20060, 20345, 21284, 26078, 26605, 36934, 40690, 52156, 53210, 65195, 69173, 73868, 81380, 92335, 106420, 130390, 138346, 184670, 240071, 260780, 276692, 313939, 345865, 369340, 480142, 627878, 691730, 960284, 1200355, 1255756, 1383460, 1569695, 2400710, 3139390, 4081207, 4801420, 6278780, 8162414, 16324828, 20406035, 40812070, 81624140]

約数ペア:

[(1, 81624140), (2, 40812070), (4, 20406035), (5, 16324828), (10, 8162414), (13, 6278780), (17, 4801420), (20, 4081207), (26, 3139390), (34, 2400710), (52, 1569695), (59, 1383460), (65, 1255756), (68, 1200355), (85, 960284), (118, 691730), (130, 627878), (170, 480142), (221, 369340), (236, 345865), (260, 313939), (295, 276692), (313, 260780), (340, 240071), (442, 184670), (590, 138346), (626, 130390), (767, 106420), (884, 92335), (1003, 81380), (1105, 73868), (1180, 69173), (1252, 65195), (1534, 53210), (1565, 52156), (2006, 40690), (2210, 36934), (3068, 26605), (3130, 26078), (3835, 21284), (4012, 20345), (4069, 20060), (4420, 18467), (5015, 16276), (5321, 15340), (6260, 13039), (7670, 10642), (8138, 10030)]