389610520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{683}}^1\times {\mathrm{1097}}^1$

素因数の和:1804

約数の個数: 64

約数和(自身を含む): 946300320

約数和(自身を除く): 556689800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 683, 1097, 1366, 2194, 2732, 3415, 4388, 5464, 5485, 6830, 8776, 8879, 10970, 13660, 14261, 17758, 21940, 27320, 28522, 35516, 43880, 44395, 57044, 71032, 71305, 88790, 114088, 142610, 177580, 285220, 355160, 570440, 749251, 1498502, 2997004, 3746255, 5994008, 7492510, 9740263, 14985020, 19480526, 29970040, 38961052, 48701315, 77922104, 97402630, 194805260, 389610520]

約数ペア:

[(1, 389610520), (2, 194805260), (4, 97402630), (5, 77922104), (8, 48701315), (10, 38961052), (13, 29970040), (20, 19480526), (26, 14985020), (40, 9740263), (52, 7492510), (65, 5994008), (104, 3746255), (130, 2997004), (260, 1498502), (520, 749251), (683, 570440), (1097, 355160), (1366, 285220), (2194, 177580), (2732, 142610), (3415, 114088), (4388, 88790), (5464, 71305), (5485, 71032), (6830, 57044), (8776, 44395), (8879, 43880), (10970, 35516), (13660, 28522), (14261, 27320), (17758, 21940)]