77693020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 166430880

約数和(自身を除く): 88737860

約数列:

[1, 2, 4, 5, 10, 20, 109, 157, 218, 227, 314, 436, 454, 545, 628, 785, 908, 1090, 1135, 1570, 2180, 2270, 3140, 4540, 17113, 24743, 34226, 35639, 49486, 68452, 71278, 85565, 98972, 123715, 142556, 171130, 178195, 247430, 342260, 356390, 494860, 712780, 3884651, 7769302, 15538604, 19423255, 38846510, 77693020]

約数ペア:

[(1, 77693020), (2, 38846510), (4, 19423255), (5, 15538604), (10, 7769302), (20, 3884651), (109, 712780), (157, 494860), (218, 356390), (227, 342260), (314, 247430), (436, 178195), (454, 171130), (545, 142556), (628, 123715), (785, 98972), (908, 85565), (1090, 71278), (1135, 68452), (1570, 49486), (2180, 35639), (2270, 34226), (3140, 24743), (4540, 17113)]