17971920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:357

約数の個数: 120

約数和(自身を含む): 61175400

約数和(自身を除く): 43203480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 109, 120, 144, 180, 218, 229, 240, 327, 360, 436, 458, 545, 654, 687, 720, 872, 916, 981, 1090, 1145, 1308, 1374, 1635, 1744, 1832, 1962, 2061, 2180, 2290, 2616, 2748, 3270, 3435, 3664, 3924, 4122, 4360, 4580, 4905, 5232, 5496, 6540, 6870, 7848, 8244, 8720, 9160, 9810, 10305, 10992, 13080, 13740, 15696, 16488, 18320, 19620, 20610, 24961, 26160, 27480, 32976, 39240, 41220, 49922, 54960, 74883, 78480, 82440, 99844, 124805, 149766, 164880, 199688, 224649, 249610, 299532, 374415, 399376, 449298, 499220, 599064, 748830, 898596, 998440, 1123245, 1198128, 1497660, 1797192, 1996880, 2246490, 2995320, 3594384, 4492980, 5990640, 8985960, 17971920]

約数ペア:

[(1, 17971920), (2, 8985960), (3, 5990640), (4, 4492980), (5, 3594384), (6, 2995320), (8, 2246490), (9, 1996880), (10, 1797192), (12, 1497660), (15, 1198128), (16, 1123245), (18, 998440), (20, 898596), (24, 748830), (30, 599064), (36, 499220), (40, 449298), (45, 399376), (48, 374415), (60, 299532), (72, 249610), (80, 224649), (90, 199688), (109, 164880), (120, 149766), (144, 124805), (180, 99844), (218, 82440), (229, 78480), (240, 74883), (327, 54960), (360, 49922), (436, 41220), (458, 39240), (545, 32976), (654, 27480), (687, 26160), (720, 24961), (872, 20610), (916, 19620), (981, 18320), (1090, 16488), (1145, 15696), (1308, 13740), (1374, 13080), (1635, 10992), (1744, 10305), (1832, 9810), (1962, 9160), (2061, 8720), (2180, 8244), (2290, 7848), (2616, 6870), (2748, 6540), (3270, 5496), (3435, 5232), (3664, 4905), (3924, 4580), (4122, 4360)]