159505240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{65371}}^1$

素因数の和:65443

約数の個数: 32

約数和(自身を含む): 364775760

約数和(自身を除く): 205270520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 65371, 130742, 261484, 326855, 522968, 653710, 1307420, 2614840, 3987631, 7975262, 15950524, 19938155, 31901048, 39876310, 79752620, 159505240]

約数ペア:

[(1, 159505240), (2, 79752620), (4, 39876310), (5, 31901048), (8, 19938155), (10, 15950524), (20, 7975262), (40, 3987631), (61, 2614840), (122, 1307420), (244, 653710), (305, 522968), (488, 326855), (610, 261484), (1220, 130742), (2440, 65371)]