78521990

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{719}}^1$

素因数の和:956

約数の個数: 32

約数和(自身を含む): 144529920

約数和(自身を除く): 66007930

約数列:

[1, 2, 5, 10, 67, 134, 163, 326, 335, 670, 719, 815, 1438, 1630, 3595, 7190, 10921, 21842, 48173, 54605, 96346, 109210, 117197, 234394, 240865, 481730, 585985, 1171970, 7852199, 15704398, 39260995, 78521990]

約数ペア:

[(1, 78521990), (2, 39260995), (5, 15704398), (10, 7852199), (67, 1171970), (134, 585985), (163, 481730), (326, 240865), (335, 234394), (670, 117197), (719, 109210), (815, 96346), (1438, 54605), (1630, 48173), (3595, 21842), (7190, 10921)]