240920840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{2003}}^1$

素因数の和:2142

約数の個数: 64

約数和(自身を含む): 565608960

約数和(自身を除く): 324688120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 124, 155, 194, 248, 310, 388, 485, 620, 776, 970, 1240, 1940, 2003, 3007, 3880, 4006, 6014, 8012, 10015, 12028, 15035, 16024, 20030, 24056, 30070, 40060, 60140, 62093, 80120, 120280, 124186, 194291, 248372, 310465, 388582, 496744, 620930, 777164, 971455, 1241860, 1554328, 1942910, 2483720, 3885820, 6023021, 7771640, 12046042, 24092084, 30115105, 48184168, 60230210, 120460420, 240920840]

約数ペア:

[(1, 240920840), (2, 120460420), (4, 60230210), (5, 48184168), (8, 30115105), (10, 24092084), (20, 12046042), (31, 7771640), (40, 6023021), (62, 3885820), (97, 2483720), (124, 1942910), (155, 1554328), (194, 1241860), (248, 971455), (310, 777164), (388, 620930), (485, 496744), (620, 388582), (776, 310465), (970, 248372), (1240, 194291), (1940, 124186), (2003, 120280), (3007, 80120), (3880, 62093), (4006, 60140), (6014, 40060), (8012, 30070), (10015, 24056), (12028, 20030), (15035, 16024)]