209360980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7853}}^1$

素因数の和:7936

約数の個数: 48

約数和(自身を含む): 464454144

約数和(自身を除く): 255093164

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 860, 1333, 2666, 5332, 6665, 7853, 13330, 15706, 26660, 31412, 39265, 78530, 157060, 243443, 337679, 486886, 675358, 973772, 1217215, 1350716, 1688395, 2434430, 3376790, 4868860, 6753580, 10468049, 20936098, 41872196, 52340245, 104680490, 209360980]

約数ペア:

[(1, 209360980), (2, 104680490), (4, 52340245), (5, 41872196), (10, 20936098), (20, 10468049), (31, 6753580), (43, 4868860), (62, 3376790), (86, 2434430), (124, 1688395), (155, 1350716), (172, 1217215), (215, 973772), (310, 675358), (430, 486886), (620, 337679), (860, 243443), (1333, 157060), (2666, 78530), (5332, 39265), (6665, 31412), (7853, 26660), (13330, 15706)]