128535988

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{787}}^1$

素因数の和:1124

約数の個数: 48

約数和(自身を含む): 271828480

約数和(自身を除く): 143292492

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 307, 532, 614, 787, 1228, 1574, 2149, 3148, 4298, 5509, 5833, 8596, 11018, 11666, 14953, 22036, 23332, 29906, 40831, 59812, 81662, 104671, 163324, 209342, 241609, 418684, 483218, 966436, 1691263, 3382526, 4590571, 6765052, 9181142, 18362284, 32133997, 64267994, 128535988]

約数ペア:

[(1, 128535988), (2, 64267994), (4, 32133997), (7, 18362284), (14, 9181142), (19, 6765052), (28, 4590571), (38, 3382526), (76, 1691263), (133, 966436), (266, 483218), (307, 418684), (532, 241609), (614, 209342), (787, 163324), (1228, 104671), (1574, 81662), (2149, 59812), (3148, 40831), (4298, 29906), (5509, 23332), (5833, 22036), (8596, 14953), (11018, 11666)]