254457920

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:388

約数の個数: 112

約数和(自身を含む): 633788928

約数和(自身を除く): 379331008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 113, 124, 155, 160, 226, 227, 248, 310, 320, 452, 454, 496, 565, 620, 904, 908, 992, 1130, 1135, 1240, 1808, 1816, 1984, 2260, 2270, 2480, 3503, 3616, 3632, 4520, 4540, 4960, 7006, 7037, 7232, 7264, 9040, 9080, 9920, 14012, 14074, 14528, 17515, 18080, 18160, 25651, 28024, 28148, 35030, 35185, 36160, 36320, 51302, 56048, 56296, 70060, 70370, 72640, 102604, 112096, 112592, 128255, 140120, 140740, 205208, 224192, 225184, 256510, 280240, 281480, 410416, 450368, 513020, 560480, 562960, 795181, 820832, 1026040, 1120960, 1125920, 1590362, 1641664, 2052080, 2251840, 3180724, 3975905, 4104160, 6361448, 7951810, 8208320, 12722896, 15903620, 25445792, 31807240, 50891584, 63614480, 127228960, 254457920]

約数ペア:

[(1, 254457920), (2, 127228960), (4, 63614480), (5, 50891584), (8, 31807240), (10, 25445792), (16, 15903620), (20, 12722896), (31, 8208320), (32, 7951810), (40, 6361448), (62, 4104160), (64, 3975905), (80, 3180724), (113, 2251840), (124, 2052080), (155, 1641664), (160, 1590362), (226, 1125920), (227, 1120960), (248, 1026040), (310, 820832), (320, 795181), (452, 562960), (454, 560480), (496, 513020), (565, 450368), (620, 410416), (904, 281480), (908, 280240), (992, 256510), (1130, 225184), (1135, 224192), (1240, 205208), (1808, 140740), (1816, 140120), (1984, 128255), (2260, 112592), (2270, 112096), (2480, 102604), (3503, 72640), (3616, 70370), (3632, 70060), (4520, 56296), (4540, 56048), (4960, 51302), (7006, 36320), (7037, 36160), (7232, 35185), (7264, 35030), (9040, 28148), (9080, 28024), (9920, 25651), (14012, 18160), (14074, 18080), (14528, 17515)]