388580780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:592

約数の個数: 144

約数和(自身を含む): 1025589600

約数和(自身を除く): 637008820

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 41, 49, 70, 76, 82, 95, 98, 133, 140, 164, 190, 196, 205, 245, 266, 287, 380, 410, 490, 509, 532, 574, 665, 779, 820, 931, 980, 1018, 1148, 1330, 1435, 1558, 1862, 2009, 2036, 2545, 2660, 2870, 3116, 3563, 3724, 3895, 4018, 4655, 5090, 5453, 5740, 7126, 7790, 8036, 9310, 9671, 10045, 10180, 10906, 14252, 15580, 17815, 18620, 19342, 20090, 20869, 21812, 24941, 27265, 35630, 38171, 38684, 40180, 41738, 48355, 49882, 54530, 67697, 71260, 76342, 83476, 96710, 99764, 104345, 109060, 124705, 135394, 146083, 152684, 190855, 193420, 208690, 249410, 270788, 292166, 338485, 381710, 396511, 417380, 473879, 498820, 584332, 676970, 730415, 763420, 793022, 947758, 1022581, 1353940, 1460830, 1586044, 1895516, 1982555, 2045162, 2369395, 2775577, 2921660, 3965110, 4090324, 4738790, 5112905, 5551154, 7930220, 9477580, 10225810, 11102308, 13877885, 19429039, 20451620, 27755770, 38858078, 55511540, 77716156, 97145195, 194290390, 388580780]

約数ペア:

[(1, 388580780), (2, 194290390), (4, 97145195), (5, 77716156), (7, 55511540), (10, 38858078), (14, 27755770), (19, 20451620), (20, 19429039), (28, 13877885), (35, 11102308), (38, 10225810), (41, 9477580), (49, 7930220), (70, 5551154), (76, 5112905), (82, 4738790), (95, 4090324), (98, 3965110), (133, 2921660), (140, 2775577), (164, 2369395), (190, 2045162), (196, 1982555), (205, 1895516), (245, 1586044), (266, 1460830), (287, 1353940), (380, 1022581), (410, 947758), (490, 793022), (509, 763420), (532, 730415), (574, 676970), (665, 584332), (779, 498820), (820, 473879), (931, 417380), (980, 396511), (1018, 381710), (1148, 338485), (1330, 292166), (1435, 270788), (1558, 249410), (1862, 208690), (2009, 193420), (2036, 190855), (2545, 152684), (2660, 146083), (2870, 135394), (3116, 124705), (3563, 109060), (3724, 104345), (3895, 99764), (4018, 96710), (4655, 83476), (5090, 76342), (5453, 71260), (5740, 67697), (7126, 54530), (7790, 49882), (8036, 48355), (9310, 41738), (9671, 40180), (10045, 38684), (10180, 38171), (10906, 35630), (14252, 27265), (15580, 24941), (17815, 21812), (18620, 20869), (19342, 20090)]