51561680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1223}}^1$

素因数の和:1284

約数の個数: 80

約数和(自身を含む): 131134464

約数和(自身を除く): 79572784

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 1054, 1223, 1240, 1360, 2108, 2446, 2480, 2635, 4216, 4892, 5270, 6115, 8432, 9784, 10540, 12230, 19568, 20791, 21080, 24460, 37913, 41582, 42160, 48920, 75826, 83164, 97840, 103955, 151652, 166328, 189565, 207910, 303304, 332656, 379130, 415820, 606608, 644521, 758260, 831640, 1289042, 1516520, 1663280, 2578084, 3033040, 3222605, 5156168, 6445210, 10312336, 12890420, 25780840, 51561680]

約数ペア:

[(1, 51561680), (2, 25780840), (4, 12890420), (5, 10312336), (8, 6445210), (10, 5156168), (16, 3222605), (17, 3033040), (20, 2578084), (31, 1663280), (34, 1516520), (40, 1289042), (62, 831640), (68, 758260), (80, 644521), (85, 606608), (124, 415820), (136, 379130), (155, 332656), (170, 303304), (248, 207910), (272, 189565), (310, 166328), (340, 151652), (496, 103955), (527, 97840), (620, 83164), (680, 75826), (1054, 48920), (1223, 42160), (1240, 41582), (1360, 37913), (2108, 24460), (2446, 21080), (2480, 20791), (2635, 19568), (4216, 12230), (4892, 10540), (5270, 9784), (6115, 8432)]