18630400

素因数分解:

$2^8\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 108

約数和(自身を含む): 47903184

約数和(自身を除く): 29272784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 71, 80, 82, 100, 128, 142, 160, 164, 200, 205, 256, 284, 320, 328, 355, 400, 410, 568, 640, 656, 710, 800, 820, 1025, 1136, 1280, 1312, 1420, 1600, 1640, 1775, 2050, 2272, 2624, 2840, 2911, 3200, 3280, 3550, 4100, 4544, 5248, 5680, 5822, 6400, 6560, 7100, 8200, 9088, 10496, 11360, 11644, 13120, 14200, 14555, 16400, 18176, 22720, 23288, 26240, 28400, 29110, 32800, 45440, 46576, 52480, 56800, 58220, 65600, 72775, 90880, 93152, 113600, 116440, 131200, 145550, 186304, 227200, 232880, 262400, 291100, 372608, 454400, 465760, 582200, 745216, 931520, 1164400, 1863040, 2328800, 3726080, 4657600, 9315200, 18630400]

約数ペア:

[(1, 18630400), (2, 9315200), (4, 4657600), (5, 3726080), (8, 2328800), (10, 1863040), (16, 1164400), (20, 931520), (25, 745216), (32, 582200), (40, 465760), (41, 454400), (50, 372608), (64, 291100), (71, 262400), (80, 232880), (82, 227200), (100, 186304), (128, 145550), (142, 131200), (160, 116440), (164, 113600), (200, 93152), (205, 90880), (256, 72775), (284, 65600), (320, 58220), (328, 56800), (355, 52480), (400, 46576), (410, 45440), (568, 32800), (640, 29110), (656, 28400), (710, 26240), (800, 23288), (820, 22720), (1025, 18176), (1136, 16400), (1280, 14555), (1312, 14200), (1420, 13120), (1600, 11644), (1640, 11360), (1775, 10496), (2050, 9088), (2272, 8200), (2624, 7100), (2840, 6560), (2911, 6400), (3200, 5822), (3280, 5680), (3550, 5248), (4100, 4544)]