78847880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63587}}^1$

素因数の和:63629

約数の個数: 32

約数和(自身を含む): 183133440

約数和(自身を除く): 104285560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 63587, 127174, 254348, 317935, 508696, 635870, 1271740, 1971197, 2543480, 3942394, 7884788, 9855985, 15769576, 19711970, 39423940, 78847880]

約数ペア:

[(1, 78847880), (2, 39423940), (4, 19711970), (5, 15769576), (8, 9855985), (10, 7884788), (20, 3942394), (31, 2543480), (40, 1971197), (62, 1271740), (124, 635870), (155, 508696), (248, 317935), (310, 254348), (620, 127174), (1240, 63587)]