20512120700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{229699}}^1$

素因数の和:229779

約数の個数: 72

約数和(自身を含む): 47851104000

約数和(自身を除く): 27338983300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 47, 50, 76, 94, 95, 100, 188, 190, 235, 380, 470, 475, 893, 940, 950, 1175, 1786, 1900, 2350, 3572, 4465, 4700, 8930, 17860, 22325, 44650, 89300, 229699, 459398, 918796, 1148495, 2296990, 4364281, 4593980, 5742475, 8728562, 10795853, 11484950, 17457124, 21591706, 21821405, 22969900, 43183412, 43642810, 53979265, 87285620, 107958530, 109107025, 205121207, 215917060, 218214050, 269896325, 410242414, 436428100, 539792650, 820484828, 1025606035, 1079585300, 2051212070, 4102424140, 5128030175, 10256060350, 20512120700]

約数ペア:

[(1, 20512120700), (2, 10256060350), (4, 5128030175), (5, 4102424140), (10, 2051212070), (19, 1079585300), (20, 1025606035), (25, 820484828), (38, 539792650), (47, 436428100), (50, 410242414), (76, 269896325), (94, 218214050), (95, 215917060), (100, 205121207), (188, 109107025), (190, 107958530), (235, 87285620), (380, 53979265), (470, 43642810), (475, 43183412), (893, 22969900), (940, 21821405), (950, 21591706), (1175, 17457124), (1786, 11484950), (1900, 10795853), (2350, 8728562), (3572, 5742475), (4465, 4593980), (4700, 4364281), (8930, 2296990), (17860, 1148495), (22325, 918796), (44650, 459398), (89300, 229699)]