858209390

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:441

約数の個数: 64

約数和(自身を含む): 1617408000

約数和(自身を除く): 759198610

約数列:

[1, 2, 5, 10, 53, 79, 103, 106, 158, 199, 206, 265, 395, 398, 515, 530, 790, 995, 1030, 1990, 4187, 5459, 8137, 8374, 10547, 10918, 15721, 16274, 20497, 20935, 21094, 27295, 31442, 40685, 40994, 41870, 52735, 54590, 78605, 81370, 102485, 105470, 157210, 204970, 431261, 833213, 862522, 1086341, 1619263, 1666426, 2156305, 2172682, 3238526, 4166065, 4312610, 5431705, 8096315, 8332130, 10863410, 16192630, 85820939, 171641878, 429104695, 858209390]

約数ペア:

[(1, 858209390), (2, 429104695), (5, 171641878), (10, 85820939), (53, 16192630), (79, 10863410), (103, 8332130), (106, 8096315), (158, 5431705), (199, 4312610), (206, 4166065), (265, 3238526), (395, 2172682), (398, 2156305), (515, 1666426), (530, 1619263), (790, 1086341), (995, 862522), (1030, 833213), (1990, 431261), (4187, 204970), (5459, 157210), (8137, 105470), (8374, 102485), (10547, 81370), (10918, 78605), (15721, 54590), (16274, 52735), (20497, 41870), (20935, 40994), (21094, 40685), (27295, 31442)]