1989856804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{3989}}^1$

素因数の和:4240

約数の個数: 48

約数和(自身を含む): 3842944560

約数和(自身を除く): 1853087756

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 181, 212, 362, 689, 724, 1378, 2353, 2756, 3989, 4706, 7978, 9412, 9593, 15956, 19186, 38372, 51857, 103714, 124709, 207428, 211417, 249418, 422834, 498836, 722009, 845668, 1444018, 2748421, 2888036, 5496842, 9386117, 10993684, 18772234, 37544468, 38266477, 76532954, 153065908, 497464201, 994928402, 1989856804]

約数ペア:

[(1, 1989856804), (2, 994928402), (4, 497464201), (13, 153065908), (26, 76532954), (52, 38266477), (53, 37544468), (106, 18772234), (181, 10993684), (212, 9386117), (362, 5496842), (689, 2888036), (724, 2748421), (1378, 1444018), (2353, 845668), (2756, 722009), (3989, 498836), (4706, 422834), (7978, 249418), (9412, 211417), (9593, 207428), (15956, 124709), (19186, 103714), (38372, 51857)]