20368049260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1109}}^1\times {\mathrm{70639}}^1$

素因数の和:71770

約数の個数: 48

約数和(自身を含む): 46105315200

約数和(自身を除く): 25737265940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1109, 2218, 4436, 5545, 11090, 14417, 22180, 28834, 57668, 70639, 72085, 141278, 144170, 282556, 288340, 353195, 706390, 918307, 1412780, 1836614, 3673228, 4591535, 9183070, 18366140, 78338651, 156677302, 313354604, 391693255, 783386510, 1018402463, 1566773020, 2036804926, 4073609852, 5092012315, 10184024630, 20368049260]

約数ペア:

[(1, 20368049260), (2, 10184024630), (4, 5092012315), (5, 4073609852), (10, 2036804926), (13, 1566773020), (20, 1018402463), (26, 783386510), (52, 391693255), (65, 313354604), (130, 156677302), (260, 78338651), (1109, 18366140), (2218, 9183070), (4436, 4591535), (5545, 3673228), (11090, 1836614), (14417, 1412780), (22180, 918307), (28834, 706390), (57668, 353195), (70639, 288340), (72085, 282556), (141278, 144170)]