39905680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16091}}^1$

素因数の和:16135

約数の個数: 40

約数和(自身を含む): 95779584

約数和(自身を除く): 55873904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 16091, 32182, 64364, 80455, 128728, 160910, 257456, 321820, 498821, 643640, 997642, 1287280, 1995284, 2494105, 3990568, 4988210, 7981136, 9976420, 19952840, 39905680]

約数ペア:

[(1, 39905680), (2, 19952840), (4, 9976420), (5, 7981136), (8, 4988210), (10, 3990568), (16, 2494105), (20, 1995284), (31, 1287280), (40, 997642), (62, 643640), (80, 498821), (124, 321820), (155, 257456), (248, 160910), (310, 128728), (496, 80455), (620, 64364), (1240, 32182), (2480, 16091)]