13289583820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{442691}}^1$

素因数の和:442798

約数の個数: 48

約数和(自身を含む): 29748902400

約数和(自身を除く): 16459318580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 6004, 7505, 15010, 30020, 442691, 885382, 1770764, 2213455, 4426910, 8411129, 8853820, 16822258, 33644516, 34972589, 42055645, 69945178, 84111290, 139890356, 168222580, 174862945, 349725890, 664479191, 699451780, 1328958382, 2657916764, 3322395955, 6644791910, 13289583820]

約数ペア:

[(1, 13289583820), (2, 6644791910), (4, 3322395955), (5, 2657916764), (10, 1328958382), (19, 699451780), (20, 664479191), (38, 349725890), (76, 174862945), (79, 168222580), (95, 139890356), (158, 84111290), (190, 69945178), (316, 42055645), (380, 34972589), (395, 33644516), (790, 16822258), (1501, 8853820), (1580, 8411129), (3002, 4426910), (6004, 2213455), (7505, 1770764), (15010, 885382), (30020, 442691)]