19002420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{461}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 58017960

約数和(自身を除く): 39015540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 461, 687, 916, 922, 1145, 1374, 1383, 1844, 2061, 2290, 2305, 2748, 2766, 3435, 4122, 4149, 4580, 4610, 5532, 6870, 6915, 8244, 8298, 9220, 10305, 13740, 13830, 16596, 20610, 20745, 27660, 41220, 41490, 82980, 105569, 211138, 316707, 422276, 527845, 633414, 950121, 1055690, 1266828, 1583535, 1900242, 2111380, 3167070, 3800484, 4750605, 6334140, 9501210, 19002420]

約数ペア:

[(1, 19002420), (2, 9501210), (3, 6334140), (4, 4750605), (5, 3800484), (6, 3167070), (9, 2111380), (10, 1900242), (12, 1583535), (15, 1266828), (18, 1055690), (20, 950121), (30, 633414), (36, 527845), (45, 422276), (60, 316707), (90, 211138), (180, 105569), (229, 82980), (458, 41490), (461, 41220), (687, 27660), (916, 20745), (922, 20610), (1145, 16596), (1374, 13830), (1383, 13740), (1844, 10305), (2061, 9220), (2290, 8298), (2305, 8244), (2748, 6915), (2766, 6870), (3435, 5532), (4122, 4610), (4149, 4580)]