15942220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4951}}^1$

素因数の和:4990

約数の個数: 48

約数和(自身を含む): 39932928

約数和(自身を除く): 23990708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 4951, 9902, 19804, 24755, 34657, 49510, 69314, 99020, 113873, 138628, 173285, 227746, 346570, 455492, 569365, 693140, 797111, 1138730, 1594222, 2277460, 3188444, 3985555, 7971110, 15942220]

約数ペア:

[(1, 15942220), (2, 7971110), (4, 3985555), (5, 3188444), (7, 2277460), (10, 1594222), (14, 1138730), (20, 797111), (23, 693140), (28, 569365), (35, 455492), (46, 346570), (70, 227746), (92, 173285), (115, 138628), (140, 113873), (161, 99020), (230, 69314), (322, 49510), (460, 34657), (644, 24755), (805, 19804), (1610, 9902), (3220, 4951)]