81059420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 193052160

約数和(自身を除く): 111992740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 89, 113, 124, 130, 155, 178, 226, 260, 310, 356, 403, 445, 452, 565, 620, 806, 890, 1130, 1157, 1469, 1612, 1780, 2015, 2260, 2314, 2759, 2938, 3503, 4030, 4628, 5518, 5785, 5876, 7006, 7345, 8060, 10057, 11036, 11570, 13795, 14012, 14690, 17515, 20114, 23140, 27590, 29380, 35030, 35867, 40228, 45539, 50285, 55180, 70060, 71734, 91078, 100570, 130741, 143468, 179335, 182156, 201140, 227695, 261482, 311767, 358670, 455390, 522964, 623534, 653705, 717340, 910780, 1247068, 1307410, 1558835, 2614820, 3117670, 4052971, 6235340, 8105942, 16211884, 20264855, 40529710, 81059420]

約数ペア:

[(1, 81059420), (2, 40529710), (4, 20264855), (5, 16211884), (10, 8105942), (13, 6235340), (20, 4052971), (26, 3117670), (31, 2614820), (52, 1558835), (62, 1307410), (65, 1247068), (89, 910780), (113, 717340), (124, 653705), (130, 623534), (155, 522964), (178, 455390), (226, 358670), (260, 311767), (310, 261482), (356, 227695), (403, 201140), (445, 182156), (452, 179335), (565, 143468), (620, 130741), (806, 100570), (890, 91078), (1130, 71734), (1157, 70060), (1469, 55180), (1612, 50285), (1780, 45539), (2015, 40228), (2260, 35867), (2314, 35030), (2759, 29380), (2938, 27590), (3503, 23140), (4030, 20114), (4628, 17515), (5518, 14690), (5785, 14012), (5876, 13795), (7006, 11570), (7345, 11036), (8060, 10057)]