19475560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 49278240

約数和(自身を除く): 29802680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 67, 86, 104, 130, 134, 169, 172, 215, 260, 268, 335, 338, 344, 430, 520, 536, 559, 670, 676, 845, 860, 871, 1118, 1340, 1352, 1690, 1720, 1742, 2236, 2680, 2795, 2881, 3380, 3484, 4355, 4472, 5590, 5762, 6760, 6968, 7267, 8710, 11180, 11323, 11524, 14405, 14534, 17420, 22360, 22646, 23048, 28810, 29068, 34840, 36335, 37453, 45292, 56615, 57620, 58136, 72670, 74906, 90584, 113230, 115240, 145340, 149812, 187265, 226460, 290680, 299624, 374530, 452920, 486889, 749060, 973778, 1498120, 1947556, 2434445, 3895112, 4868890, 9737780, 19475560]

約数ペア:

[(1, 19475560), (2, 9737780), (4, 4868890), (5, 3895112), (8, 2434445), (10, 1947556), (13, 1498120), (20, 973778), (26, 749060), (40, 486889), (43, 452920), (52, 374530), (65, 299624), (67, 290680), (86, 226460), (104, 187265), (130, 149812), (134, 145340), (169, 115240), (172, 113230), (215, 90584), (260, 74906), (268, 72670), (335, 58136), (338, 57620), (344, 56615), (430, 45292), (520, 37453), (536, 36335), (559, 34840), (670, 29068), (676, 28810), (845, 23048), (860, 22646), (871, 22360), (1118, 17420), (1340, 14534), (1352, 14405), (1690, 11524), (1720, 11323), (1742, 11180), (2236, 8710), (2680, 7267), (2795, 6968), (2881, 6760), (3380, 5762), (3484, 5590), (4355, 4472)]