9980081990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{2957}}^1$

素因数の和:3221

約数の個数: 64

約数和(自身を含む): 18891823104

約数和(自身を除く): 8911741114

約数列:

[1, 2, 5, 10, 43, 47, 86, 94, 167, 215, 235, 334, 430, 470, 835, 1670, 2021, 2957, 4042, 5914, 7181, 7849, 10105, 14362, 14785, 15698, 20210, 29570, 35905, 39245, 71810, 78490, 127151, 138979, 254302, 277958, 337507, 493819, 635755, 675014, 694895, 987638, 1271510, 1389790, 1687535, 2469095, 3375070, 4938190, 5976097, 11952194, 21234217, 23209493, 29880485, 42468434, 46418986, 59760970, 106171085, 116047465, 212342170, 232094930, 998008199, 1996016398, 4990040995, 9980081990]

約数ペア:

[(1, 9980081990), (2, 4990040995), (5, 1996016398), (10, 998008199), (43, 232094930), (47, 212342170), (86, 116047465), (94, 106171085), (167, 59760970), (215, 46418986), (235, 42468434), (334, 29880485), (430, 23209493), (470, 21234217), (835, 11952194), (1670, 5976097), (2021, 4938190), (2957, 3375070), (4042, 2469095), (5914, 1687535), (7181, 1389790), (7849, 1271510), (10105, 987638), (14362, 694895), (14785, 675014), (15698, 635755), (20210, 493819), (29570, 337507), (35905, 277958), (39245, 254302), (71810, 138979), (78490, 127151)]