72985240

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 169128000

約数和(自身を除く): 96142760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 173, 199, 212, 265, 346, 398, 424, 530, 692, 796, 865, 995, 1060, 1384, 1592, 1730, 1990, 2120, 3460, 3980, 6920, 7960, 9169, 10547, 18338, 21094, 34427, 36676, 42188, 45845, 52735, 68854, 73352, 84376, 91690, 105470, 137708, 172135, 183380, 210940, 275416, 344270, 366760, 421880, 688540, 1377080, 1824631, 3649262, 7298524, 9123155, 14597048, 18246310, 36492620, 72985240]

約数ペア:

[(1, 72985240), (2, 36492620), (4, 18246310), (5, 14597048), (8, 9123155), (10, 7298524), (20, 3649262), (40, 1824631), (53, 1377080), (106, 688540), (173, 421880), (199, 366760), (212, 344270), (265, 275416), (346, 210940), (398, 183380), (424, 172135), (530, 137708), (692, 105470), (796, 91690), (865, 84376), (995, 73352), (1060, 68854), (1384, 52735), (1592, 45845), (1730, 42188), (1990, 36676), (2120, 34427), (3460, 21094), (3980, 18338), (6920, 10547), (7960, 9169)]