64176880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13151}}^1$

素因数の和:13225

約数の個数: 40

約数和(自身を含む): 151668864

約数和(自身を除く): 87491984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 13151, 26302, 52604, 65755, 105208, 131510, 210416, 263020, 526040, 802211, 1052080, 1604422, 3208844, 4011055, 6417688, 8022110, 12835376, 16044220, 32088440, 64176880]

約数ペア:

[(1, 64176880), (2, 32088440), (4, 16044220), (5, 12835376), (8, 8022110), (10, 6417688), (16, 4011055), (20, 3208844), (40, 1604422), (61, 1052080), (80, 802211), (122, 526040), (244, 263020), (305, 210416), (488, 131510), (610, 105208), (976, 65755), (1220, 52604), (2440, 26302), (4880, 13151)]