20123999990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{336353}}^1$

素因数の和:336584

約数の個数: 32

約数和(自身を含む): 37585541376

約数和(自身を除く): 17461541386

約数列:

[1, 2, 5, 10, 31, 62, 155, 193, 310, 386, 965, 1930, 5983, 11966, 29915, 59830, 336353, 672706, 1681765, 3363530, 10426943, 20853886, 52134715, 64916129, 104269430, 129832258, 324580645, 649161290, 2012399999, 4024799998, 10061999995, 20123999990]

約数ペア:

[(1, 20123999990), (2, 10061999995), (5, 4024799998), (10, 2012399999), (31, 649161290), (62, 324580645), (155, 129832258), (193, 104269430), (310, 64916129), (386, 52134715), (965, 20853886), (1930, 10426943), (5983, 3363530), (11966, 1681765), (29915, 672706), (59830, 336353)]