290781440

素因数分解:

$2^8\times 5^1\times {\mathrm{367}}^1\times {\mathrm{619}}^1$

素因数の和:1007

約数の個数: 72

約数和(自身を含む): 699538560

約数和(自身を除く): 408757120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 367, 619, 640, 734, 1238, 1280, 1468, 1835, 2476, 2936, 3095, 3670, 4952, 5872, 6190, 7340, 9904, 11744, 12380, 14680, 19808, 23488, 24760, 29360, 39616, 46976, 49520, 58720, 79232, 93952, 99040, 117440, 158464, 198080, 227173, 234880, 396160, 454346, 469760, 792320, 908692, 1135865, 1817384, 2271730, 3634768, 4543460, 7269536, 9086920, 14539072, 18173840, 29078144, 36347680, 58156288, 72695360, 145390720, 290781440]

約数ペア:

[(1, 290781440), (2, 145390720), (4, 72695360), (5, 58156288), (8, 36347680), (10, 29078144), (16, 18173840), (20, 14539072), (32, 9086920), (40, 7269536), (64, 4543460), (80, 3634768), (128, 2271730), (160, 1817384), (256, 1135865), (320, 908692), (367, 792320), (619, 469760), (640, 454346), (734, 396160), (1238, 234880), (1280, 227173), (1468, 198080), (1835, 158464), (2476, 117440), (2936, 99040), (3095, 93952), (3670, 79232), (4952, 58720), (5872, 49520), (6190, 46976), (7340, 39616), (9904, 29360), (11744, 24760), (12380, 23488), (14680, 19808)]