65101640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26681}}^1$

素因数の和:26753

約数の個数: 32

約数和(自身を含む): 148885560

約数和(自身を除く): 83783920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 26681, 53362, 106724, 133405, 213448, 266810, 533620, 1067240, 1627541, 3255082, 6510164, 8137705, 13020328, 16275410, 32550820, 65101640]

約数ペア:

[(1, 65101640), (2, 32550820), (4, 16275410), (5, 13020328), (8, 8137705), (10, 6510164), (20, 3255082), (40, 1627541), (61, 1067240), (122, 533620), (244, 266810), (305, 213448), (488, 133405), (610, 106724), (1220, 53362), (2440, 26681)]