389137840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53453}}^1$

素因数の和:53486

約数の個数: 80

約数和(自身を含む): 1113553728

約数和(自身を除く): 724415888

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 53453, 106906, 213812, 267265, 374171, 427624, 534530, 694889, 748342, 855248, 1069060, 1389778, 1496684, 1870855, 2138120, 2779556, 2993368, 3474445, 3741710, 4276240, 4864223, 5559112, 5986736, 6948890, 7483420, 9728446, 11118224, 13897780, 14966840, 19456892, 24321115, 27795560, 29933680, 38913784, 48642230, 55591120, 77827568, 97284460, 194568920, 389137840]

約数ペア:

[(1, 389137840), (2, 194568920), (4, 97284460), (5, 77827568), (7, 55591120), (8, 48642230), (10, 38913784), (13, 29933680), (14, 27795560), (16, 24321115), (20, 19456892), (26, 14966840), (28, 13897780), (35, 11118224), (40, 9728446), (52, 7483420), (56, 6948890), (65, 5986736), (70, 5559112), (80, 4864223), (91, 4276240), (104, 3741710), (112, 3474445), (130, 2993368), (140, 2779556), (182, 2138120), (208, 1870855), (260, 1496684), (280, 1389778), (364, 1069060), (455, 855248), (520, 748342), (560, 694889), (728, 534530), (910, 427624), (1040, 374171), (1456, 267265), (1820, 213812), (3640, 106906), (7280, 53453)]