64699700

素因数分解:

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

素因数の和:501

約数の個数: 72

約数和(自身を含む): 152641272

約数和(自身を除く): 87941572

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 157, 260, 314, 317, 325, 628, 634, 650, 785, 1268, 1300, 1570, 1585, 2041, 3140, 3170, 3925, 4082, 4121, 6340, 7850, 7925, 8164, 8242, 10205, 15700, 15850, 16484, 20410, 20605, 31700, 40820, 41210, 49769, 51025, 82420, 99538, 102050, 103025, 199076, 204100, 206050, 248845, 412100, 497690, 646997, 995380, 1244225, 1293994, 2488450, 2587988, 3234985, 4976900, 6469970, 12939940, 16174925, 32349850, 64699700]

約数ペア:

[(1, 64699700), (2, 32349850), (4, 16174925), (5, 12939940), (10, 6469970), (13, 4976900), (20, 3234985), (25, 2587988), (26, 2488450), (50, 1293994), (52, 1244225), (65, 995380), (100, 646997), (130, 497690), (157, 412100), (260, 248845), (314, 206050), (317, 204100), (325, 199076), (628, 103025), (634, 102050), (650, 99538), (785, 82420), (1268, 51025), (1300, 49769), (1570, 41210), (1585, 40820), (2041, 31700), (3140, 20605), (3170, 20410), (3925, 16484), (4082, 15850), (4121, 15700), (6340, 10205), (7850, 8242), (7925, 8164)]