99905680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{178403}}^1$

素因数の和:178423

約数の個数: 40

約数和(自身を含む): 265465152

約数和(自身を除く): 165559472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 178403, 356806, 713612, 892015, 1248821, 1427224, 1784030, 2497642, 2854448, 3568060, 4995284, 6244105, 7136120, 9990568, 12488210, 14272240, 19981136, 24976420, 49952840, 99905680]

約数ペア:

[(1, 99905680), (2, 49952840), (4, 24976420), (5, 19981136), (7, 14272240), (8, 12488210), (10, 9990568), (14, 7136120), (16, 6244105), (20, 4995284), (28, 3568060), (35, 2854448), (40, 2497642), (56, 1784030), (70, 1427224), (80, 1248821), (112, 892015), (140, 713612), (280, 356806), (560, 178403)]