890990175740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{20332957}}^1$

素因数の和:20333286

約数の個数: 48

約数和(自身を含む): 2145208400832

約数和(自身を除く): 1254218225092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 626, 1252, 1565, 2191, 3130, 4382, 6260, 8764, 10955, 21910, 43820, 20332957, 40665914, 81331828, 101664785, 142330699, 203329570, 284661398, 406659140, 569322796, 711653495, 1423306990, 2846613980, 6364215541, 12728431082, 25456862164, 31821077705, 44549508787, 63642155410, 89099017574, 127284310820, 178198035148, 222747543935, 445495087870, 890990175740]

約数ペア:

[(1, 890990175740), (2, 445495087870), (4, 222747543935), (5, 178198035148), (7, 127284310820), (10, 89099017574), (14, 63642155410), (20, 44549508787), (28, 31821077705), (35, 25456862164), (70, 12728431082), (140, 6364215541), (313, 2846613980), (626, 1423306990), (1252, 711653495), (1565, 569322796), (2191, 406659140), (3130, 284661398), (4382, 203329570), (6260, 142330699), (8764, 101664785), (10955, 81331828), (21910, 40665914), (43820, 20332957)]