161749250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 329198688

約数和(自身を除く): 167449438

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 157, 250, 314, 317, 325, 634, 650, 785, 1570, 1585, 1625, 2041, 3170, 3250, 3925, 4082, 4121, 7850, 7925, 8242, 10205, 15850, 19625, 20410, 20605, 39250, 39625, 41210, 49769, 51025, 79250, 99538, 102050, 103025, 206050, 248845, 255125, 497690, 510250, 515125, 646997, 1030250, 1244225, 1293994, 2488450, 3234985, 6221125, 6469970, 12442250, 16174925, 32349850, 80874625, 161749250]

約数ペア:

[(1, 161749250), (2, 80874625), (5, 32349850), (10, 16174925), (13, 12442250), (25, 6469970), (26, 6221125), (50, 3234985), (65, 2488450), (125, 1293994), (130, 1244225), (157, 1030250), (250, 646997), (314, 515125), (317, 510250), (325, 497690), (634, 255125), (650, 248845), (785, 206050), (1570, 103025), (1585, 102050), (1625, 99538), (2041, 79250), (3170, 51025), (3250, 49769), (3925, 41210), (4082, 39625), (4121, 39250), (7850, 20605), (7925, 20410), (8242, 19625), (10205, 15850)]