86578660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19949}}^1$

素因数の和:19996

約数の個数: 48

約数和(自身を含む): 214502400

約数和(自身を除く): 127923740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 19949, 39898, 79796, 99745, 139643, 199490, 279286, 398980, 558572, 618419, 698215, 1236838, 1396430, 2473676, 2792860, 3092095, 4328933, 6184190, 8657866, 12368380, 17315732, 21644665, 43289330, 86578660]

約数ペア:

[(1, 86578660), (2, 43289330), (4, 21644665), (5, 17315732), (7, 12368380), (10, 8657866), (14, 6184190), (20, 4328933), (28, 3092095), (31, 2792860), (35, 2473676), (62, 1396430), (70, 1236838), (124, 698215), (140, 618419), (155, 558572), (217, 398980), (310, 279286), (434, 199490), (620, 139643), (868, 99745), (1085, 79796), (2170, 39898), (4340, 19949)]