80647580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{991}}^1$

素因数の和:1326

約数の個数: 48

約数和(自身を含む): 183154944

約数和(自身を除く): 102507364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313, 626, 991, 1252, 1565, 1982, 3130, 3964, 4069, 4955, 6260, 8138, 9910, 12883, 16276, 19820, 20345, 25766, 40690, 51532, 64415, 81380, 128830, 257660, 310183, 620366, 1240732, 1550915, 3101830, 4032379, 6203660, 8064758, 16129516, 20161895, 40323790, 80647580]

約数ペア:

[(1, 80647580), (2, 40323790), (4, 20161895), (5, 16129516), (10, 8064758), (13, 6203660), (20, 4032379), (26, 3101830), (52, 1550915), (65, 1240732), (130, 620366), (260, 310183), (313, 257660), (626, 128830), (991, 81380), (1252, 64415), (1565, 51532), (1982, 40690), (3130, 25766), (3964, 20345), (4069, 19820), (4955, 16276), (6260, 12883), (8138, 9910)]