79780090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{1999}}^1$

素因数の和:2326

約数の個数: 32

約数和(自身を含む): 155232000

約数和(自身を除く): 75451910

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 307, 614, 1535, 1999, 3070, 3991, 3998, 7982, 9995, 19955, 19990, 25987, 39910, 51974, 129935, 259870, 613693, 1227386, 3068465, 6136930, 7978009, 15956018, 39890045, 79780090]

約数ペア:

[(1, 79780090), (2, 39890045), (5, 15956018), (10, 7978009), (13, 6136930), (26, 3068465), (65, 1227386), (130, 613693), (307, 259870), (614, 129935), (1535, 51974), (1999, 39910), (3070, 25987), (3991, 19990), (3998, 19955), (7982, 9995)]