220173975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3251}}^1$

素因数の和:3317

約数の個数: 72

約数和(自身を含む): 461315712

約数和(自身を除く): 241141737

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 43, 45, 63, 75, 105, 129, 175, 215, 225, 301, 315, 387, 525, 645, 903, 1075, 1505, 1575, 1935, 2709, 3225, 3251, 4515, 7525, 9675, 9753, 13545, 16255, 22575, 22757, 29259, 48765, 67725, 68271, 81275, 113785, 139793, 146295, 204813, 243825, 341355, 419379, 568925, 698965, 731475, 978551, 1024065, 1258137, 1706775, 2096895, 2935653, 3494825, 4892755, 5120325, 6290685, 8806959, 10484475, 14678265, 24463775, 31453425, 44034795, 73391325, 220173975]

約数ペア:

[(1, 220173975), (3, 73391325), (5, 44034795), (7, 31453425), (9, 24463775), (15, 14678265), (21, 10484475), (25, 8806959), (35, 6290685), (43, 5120325), (45, 4892755), (63, 3494825), (75, 2935653), (105, 2096895), (129, 1706775), (175, 1258137), (215, 1024065), (225, 978551), (301, 731475), (315, 698965), (387, 568925), (525, 419379), (645, 341355), (903, 243825), (1075, 204813), (1505, 146295), (1575, 139793), (1935, 113785), (2709, 81275), (3225, 68271), (3251, 67725), (4515, 48765), (7525, 29259), (9675, 22757), (9753, 22575), (13545, 16255)]