163916420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{4447}}^1$

素因数の和:4572

約数の個数: 48

約数和(自身を含む): 366159360

約数和(自身を除く): 202242940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 970, 1843, 1940, 3686, 4447, 7372, 8894, 9215, 17788, 18430, 22235, 36860, 44470, 84493, 88940, 168986, 337972, 422465, 431359, 844930, 862718, 1689860, 1725436, 2156795, 4313590, 8195821, 8627180, 16391642, 32783284, 40979105, 81958210, 163916420]

約数ペア:

[(1, 163916420), (2, 81958210), (4, 40979105), (5, 32783284), (10, 16391642), (19, 8627180), (20, 8195821), (38, 4313590), (76, 2156795), (95, 1725436), (97, 1689860), (190, 862718), (194, 844930), (380, 431359), (388, 422465), (485, 337972), (970, 168986), (1843, 88940), (1940, 84493), (3686, 44470), (4447, 36860), (7372, 22235), (8894, 18430), (9215, 17788)]