128187920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{617}}^1$

素因数の和:697

約数の個数: 120

約数和(自身を含む): 353809944

約数和(自身を除く): 225622024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 53, 56, 70, 80, 98, 106, 112, 140, 196, 212, 245, 265, 280, 371, 392, 424, 490, 530, 560, 617, 742, 784, 848, 980, 1060, 1234, 1484, 1855, 1960, 2120, 2468, 2597, 2968, 3085, 3710, 3920, 4240, 4319, 4936, 5194, 5936, 6170, 7420, 8638, 9872, 10388, 12340, 12985, 14840, 17276, 20776, 21595, 24680, 25970, 29680, 30233, 32701, 34552, 41552, 43190, 49360, 51940, 60466, 65402, 69104, 86380, 103880, 120932, 130804, 151165, 163505, 172760, 207760, 228907, 241864, 261608, 302330, 327010, 345520, 457814, 483728, 523216, 604660, 654020, 915628, 1144535, 1209320, 1308040, 1602349, 1831256, 2289070, 2418640, 2616080, 3204698, 3662512, 4578140, 6409396, 8011745, 9156280, 12818792, 16023490, 18312560, 25637584, 32046980, 64093960, 128187920]

約数ペア:

[(1, 128187920), (2, 64093960), (4, 32046980), (5, 25637584), (7, 18312560), (8, 16023490), (10, 12818792), (14, 9156280), (16, 8011745), (20, 6409396), (28, 4578140), (35, 3662512), (40, 3204698), (49, 2616080), (53, 2418640), (56, 2289070), (70, 1831256), (80, 1602349), (98, 1308040), (106, 1209320), (112, 1144535), (140, 915628), (196, 654020), (212, 604660), (245, 523216), (265, 483728), (280, 457814), (371, 345520), (392, 327010), (424, 302330), (490, 261608), (530, 241864), (560, 228907), (617, 207760), (742, 172760), (784, 163505), (848, 151165), (980, 130804), (1060, 120932), (1234, 103880), (1484, 86380), (1855, 69104), (1960, 65402), (2120, 60466), (2468, 51940), (2597, 49360), (2968, 43190), (3085, 41552), (3710, 34552), (3920, 32701), (4240, 30233), (4319, 29680), (4936, 25970), (5194, 24680), (5936, 21595), (6170, 20776), (7420, 17276), (8638, 14840), (9872, 12985), (10388, 12340)]