216938930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53831}}^1$

素因数の和:53882

約数の個数: 32

約数和(自身を含む): 434101248

約数和(自身を除く): 217162318

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 53831, 107662, 269155, 538310, 699803, 1399606, 1668761, 3337522, 3499015, 6998030, 8343805, 16687610, 21693893, 43387786, 108469465, 216938930]

約数ペア:

[(1, 216938930), (2, 108469465), (5, 43387786), (10, 21693893), (13, 16687610), (26, 8343805), (31, 6998030), (62, 3499015), (65, 3337522), (130, 1668761), (155, 1399606), (310, 699803), (403, 538310), (806, 269155), (2015, 107662), (4030, 53831)]