812784680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{2539}}^1$

素因数の和:2754

約数の個数: 64

約数和(自身を含む): 1876348800

約数和(自身を除く): 1063564120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 151, 212, 265, 302, 424, 530, 604, 755, 1060, 1208, 1510, 2120, 2539, 3020, 5078, 6040, 8003, 10156, 12695, 16006, 20312, 25390, 32012, 40015, 50780, 64024, 80030, 101560, 134567, 160060, 269134, 320120, 383389, 538268, 672835, 766778, 1076536, 1345670, 1533556, 1916945, 2691340, 3067112, 3833890, 5382680, 7667780, 15335560, 20319617, 40639234, 81278468, 101598085, 162556936, 203196170, 406392340, 812784680]

約数ペア:

[(1, 812784680), (2, 406392340), (4, 203196170), (5, 162556936), (8, 101598085), (10, 81278468), (20, 40639234), (40, 20319617), (53, 15335560), (106, 7667780), (151, 5382680), (212, 3833890), (265, 3067112), (302, 2691340), (424, 1916945), (530, 1533556), (604, 1345670), (755, 1076536), (1060, 766778), (1208, 672835), (1510, 538268), (2120, 383389), (2539, 320120), (3020, 269134), (5078, 160060), (6040, 134567), (8003, 101560), (10156, 80030), (12695, 64024), (16006, 50780), (20312, 40015), (25390, 32012)]