85318820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{571}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 186041856

約数和(自身を除く): 100723036

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 241, 310, 482, 571, 620, 964, 1142, 1205, 2284, 2410, 2855, 4820, 5710, 7471, 11420, 14942, 17701, 29884, 35402, 37355, 70804, 74710, 88505, 137611, 149420, 177010, 275222, 354020, 550444, 688055, 1376110, 2752220, 4265941, 8531882, 17063764, 21329705, 42659410, 85318820]

約数ペア:

[(1, 85318820), (2, 42659410), (4, 21329705), (5, 17063764), (10, 8531882), (20, 4265941), (31, 2752220), (62, 1376110), (124, 688055), (155, 550444), (241, 354020), (310, 275222), (482, 177010), (571, 149420), (620, 137611), (964, 88505), (1142, 74710), (1205, 70804), (2284, 37355), (2410, 35402), (2855, 29884), (4820, 17701), (5710, 14942), (7471, 11420)]