245855240

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1\times {\mathrm{313}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 564634800

約数和(自身を除く): 318779560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 269, 292, 313, 365, 538, 584, 626, 730, 1076, 1252, 1345, 1460, 1565, 2152, 2504, 2690, 2920, 3130, 5380, 6260, 10760, 12520, 19637, 22849, 39274, 45698, 78548, 84197, 91396, 98185, 114245, 157096, 168394, 182792, 196370, 228490, 336788, 392740, 420985, 456980, 673576, 785480, 841970, 913960, 1683940, 3367880, 6146381, 12292762, 24585524, 30731905, 49171048, 61463810, 122927620, 245855240]

約数ペア:

[(1, 245855240), (2, 122927620), (4, 61463810), (5, 49171048), (8, 30731905), (10, 24585524), (20, 12292762), (40, 6146381), (73, 3367880), (146, 1683940), (269, 913960), (292, 841970), (313, 785480), (365, 673576), (538, 456980), (584, 420985), (626, 392740), (730, 336788), (1076, 228490), (1252, 196370), (1345, 182792), (1460, 168394), (1565, 157096), (2152, 114245), (2504, 98185), (2690, 91396), (2920, 84197), (3130, 78548), (5380, 45698), (6260, 39274), (10760, 22849), (12520, 19637)]