65387120

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13399}}^1$

素因数の和:13473

約数の個数: 40

約数和(自身を含む): 154528800

約数和(自身を除く): 89141680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 13399, 26798, 53596, 66995, 107192, 133990, 214384, 267980, 535960, 817339, 1071920, 1634678, 3269356, 4086695, 6538712, 8173390, 13077424, 16346780, 32693560, 65387120]

約数ペア:

[(1, 65387120), (2, 32693560), (4, 16346780), (5, 13077424), (8, 8173390), (10, 6538712), (16, 4086695), (20, 3269356), (40, 1634678), (61, 1071920), (80, 817339), (122, 535960), (244, 267980), (305, 214384), (488, 133990), (610, 107192), (976, 66995), (1220, 53596), (2440, 26798), (4880, 13399)]