331409680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20407}}^1$

素因数の和:20456

約数の個数: 80

約数和(自身を含む): 911013120

約数和(自身を除く): 579603440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 2030, 2320, 3248, 4060, 8120, 16240, 20407, 40814, 81628, 102035, 142849, 163256, 204070, 285698, 326512, 408140, 571396, 591803, 714245, 816280, 1142792, 1183606, 1428490, 1632560, 2285584, 2367212, 2856980, 2959015, 4142621, 4734424, 5713960, 5918030, 8285242, 9468848, 11427920, 11836060, 16570484, 20713105, 23672120, 33140968, 41426210, 47344240, 66281936, 82852420, 165704840, 331409680]

約数ペア:

[(1, 331409680), (2, 165704840), (4, 82852420), (5, 66281936), (7, 47344240), (8, 41426210), (10, 33140968), (14, 23672120), (16, 20713105), (20, 16570484), (28, 11836060), (29, 11427920), (35, 9468848), (40, 8285242), (56, 5918030), (58, 5713960), (70, 4734424), (80, 4142621), (112, 2959015), (116, 2856980), (140, 2367212), (145, 2285584), (203, 1632560), (232, 1428490), (280, 1183606), (290, 1142792), (406, 816280), (464, 714245), (560, 591803), (580, 571396), (812, 408140), (1015, 326512), (1160, 285698), (1624, 204070), (2030, 163256), (2320, 142849), (3248, 102035), (4060, 81628), (8120, 40814), (16240, 20407)]