28778887180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2467}}^1\times {\mathrm{20113}}^1$

素因数の和:22618

約数の個数: 48

約数和(自身を含む): 62548103520

約数和(自身を除く): 33769216340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 2467, 4934, 9868, 12335, 20113, 24670, 40226, 49340, 71543, 80452, 100565, 143086, 201130, 286172, 357715, 402260, 583277, 715430, 1166554, 1430860, 2333108, 2916385, 5832770, 11665540, 49618771, 99237542, 198475084, 248093855, 496187710, 992375420, 1438944359, 2877888718, 5755777436, 7194721795, 14389443590, 28778887180]

約数ペア:

[(1, 28778887180), (2, 14389443590), (4, 7194721795), (5, 5755777436), (10, 2877888718), (20, 1438944359), (29, 992375420), (58, 496187710), (116, 248093855), (145, 198475084), (290, 99237542), (580, 49618771), (2467, 11665540), (4934, 5832770), (9868, 2916385), (12335, 2333108), (20113, 1430860), (24670, 1166554), (40226, 715430), (49340, 583277), (71543, 402260), (80452, 357715), (100565, 286172), (143086, 201130)]