78233680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139703}}^1$

素因数の和:139723

約数の個数: 40

約数和(自身を含む): 207879552

約数和(自身を除く): 129645872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139703, 279406, 558812, 698515, 977921, 1117624, 1397030, 1955842, 2235248, 2794060, 3911684, 4889605, 5588120, 7823368, 9779210, 11176240, 15646736, 19558420, 39116840, 78233680]

約数ペア:

[(1, 78233680), (2, 39116840), (4, 19558420), (5, 15646736), (7, 11176240), (8, 9779210), (10, 7823368), (14, 5588120), (16, 4889605), (20, 3911684), (28, 2794060), (35, 2235248), (40, 1955842), (56, 1397030), (70, 1117624), (80, 977921), (112, 698515), (140, 558812), (280, 279406), (560, 139703)]