72279920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53147}}^1$

素因数の和:53177

約数の個数: 40

約数和(自身を含む): 177939504

約数和(自身を除く): 105659584

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 53147, 106294, 212588, 265735, 425176, 531470, 850352, 903499, 1062940, 1806998, 2125880, 3613996, 4251760, 4517495, 7227992, 9034990, 14455984, 18069980, 36139960, 72279920]

約数ペア:

[(1, 72279920), (2, 36139960), (4, 18069980), (5, 14455984), (8, 9034990), (10, 7227992), (16, 4517495), (17, 4251760), (20, 3613996), (34, 2125880), (40, 1806998), (68, 1062940), (80, 903499), (85, 850352), (136, 531470), (170, 425176), (272, 265735), (340, 212588), (680, 106294), (1360, 53147)]