278229590

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{1303}}^1$

素因数の和:1604

約数の個数: 32

約数和(自身を含む): 508121856

約数和(自身を除く): 229892266

約数列:

[1, 2, 5, 10, 131, 163, 262, 326, 655, 815, 1303, 1310, 1630, 2606, 6515, 13030, 21353, 42706, 106765, 170693, 212389, 213530, 341386, 424778, 853465, 1061945, 1706930, 2123890, 27822959, 55645918, 139114795, 278229590]

約数ペア:

[(1, 278229590), (2, 139114795), (5, 55645918), (10, 27822959), (131, 2123890), (163, 1706930), (262, 1061945), (326, 853465), (655, 424778), (815, 341386), (1303, 213530), (1310, 212389), (1630, 170693), (2606, 106765), (6515, 42706), (13030, 21353)]