26821990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 53362800

約数和(自身を除く): 26540810

約数列:

[1, 2, 5, 10, 13, 26, 59, 65, 118, 130, 169, 269, 295, 338, 538, 590, 767, 845, 1345, 1534, 1690, 2690, 3497, 3835, 6994, 7670, 9971, 15871, 17485, 19942, 31742, 34970, 45461, 49855, 79355, 90922, 99710, 158710, 206323, 227305, 412646, 454610, 1031615, 2063230, 2682199, 5364398, 13410995, 26821990]

約数ペア:

[(1, 26821990), (2, 13410995), (5, 5364398), (10, 2682199), (13, 2063230), (26, 1031615), (59, 454610), (65, 412646), (118, 227305), (130, 206323), (169, 158710), (269, 99710), (295, 90922), (338, 79355), (538, 49855), (590, 45461), (767, 34970), (845, 31742), (1345, 19942), (1534, 17485), (1690, 15871), (2690, 9971), (3497, 7670), (3835, 6994)]