77875720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4831}}^1$

素因数の和:4886

約数の個数: 64

約数和(自身を含む): 194826240

約数和(自身を除く): 116950520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 4831, 8060, 9662, 16120, 19324, 24155, 38648, 48310, 62803, 96620, 125606, 149761, 193240, 251212, 299522, 314015, 502424, 599044, 628030, 748805, 1198088, 1256060, 1497610, 1946893, 2512120, 2995220, 3893786, 5990440, 7787572, 9734465, 15575144, 19468930, 38937860, 77875720]

約数ペア:

[(1, 77875720), (2, 38937860), (4, 19468930), (5, 15575144), (8, 9734465), (10, 7787572), (13, 5990440), (20, 3893786), (26, 2995220), (31, 2512120), (40, 1946893), (52, 1497610), (62, 1256060), (65, 1198088), (104, 748805), (124, 628030), (130, 599044), (155, 502424), (248, 314015), (260, 299522), (310, 251212), (403, 193240), (520, 149761), (620, 125606), (806, 96620), (1240, 62803), (1612, 48310), (2015, 38648), (3224, 24155), (4030, 19324), (4831, 16120), (8060, 9662)]