20113819900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{341491}}^1$

素因数の和:341555

約数の個数: 72

約数和(自身を含む): 47426408960

約数和(自身を除く): 27312589060

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 380, 475, 589, 620, 775, 950, 1178, 1550, 1900, 2356, 2945, 3100, 5890, 11780, 14725, 29450, 58900, 341491, 682982, 1365964, 1707455, 3414910, 6488329, 6829820, 8537275, 10586221, 12976658, 17074550, 21172442, 25953316, 32441645, 34149100, 42344884, 52931105, 64883290, 105862210, 129766580, 162208225, 201138199, 211724420, 264655525, 324416450, 402276398, 529311050, 648832900, 804552796, 1005690995, 1058622100, 2011381990, 4022763980, 5028454975, 10056909950, 20113819900]

約数ペア:

[(1, 20113819900), (2, 10056909950), (4, 5028454975), (5, 4022763980), (10, 2011381990), (19, 1058622100), (20, 1005690995), (25, 804552796), (31, 648832900), (38, 529311050), (50, 402276398), (62, 324416450), (76, 264655525), (95, 211724420), (100, 201138199), (124, 162208225), (155, 129766580), (190, 105862210), (310, 64883290), (380, 52931105), (475, 42344884), (589, 34149100), (620, 32441645), (775, 25953316), (950, 21172442), (1178, 17074550), (1550, 12976658), (1900, 10586221), (2356, 8537275), (2945, 6829820), (3100, 6488329), (5890, 3414910), (11780, 1707455), (14725, 1365964), (29450, 682982), (58900, 341491)]