38951120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:149

約数の個数: 120

約数和(自身を含む): 101841696

約数和(自身を除く): 62890576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 67, 80, 86, 104, 130, 134, 169, 172, 208, 215, 260, 268, 335, 338, 344, 430, 520, 536, 559, 670, 676, 688, 845, 860, 871, 1040, 1072, 1118, 1340, 1352, 1690, 1720, 1742, 2236, 2680, 2704, 2795, 2881, 3380, 3440, 3484, 4355, 4472, 5360, 5590, 5762, 6760, 6968, 7267, 8710, 8944, 11180, 11323, 11524, 13520, 13936, 14405, 14534, 17420, 22360, 22646, 23048, 28810, 29068, 34840, 36335, 37453, 44720, 45292, 46096, 56615, 57620, 58136, 69680, 72670, 74906, 90584, 113230, 115240, 116272, 145340, 149812, 181168, 187265, 226460, 230480, 290680, 299624, 374530, 452920, 486889, 581360, 599248, 749060, 905840, 973778, 1498120, 1947556, 2434445, 2996240, 3895112, 4868890, 7790224, 9737780, 19475560, 38951120]

約数ペア:

[(1, 38951120), (2, 19475560), (4, 9737780), (5, 7790224), (8, 4868890), (10, 3895112), (13, 2996240), (16, 2434445), (20, 1947556), (26, 1498120), (40, 973778), (43, 905840), (52, 749060), (65, 599248), (67, 581360), (80, 486889), (86, 452920), (104, 374530), (130, 299624), (134, 290680), (169, 230480), (172, 226460), (208, 187265), (215, 181168), (260, 149812), (268, 145340), (335, 116272), (338, 115240), (344, 113230), (430, 90584), (520, 74906), (536, 72670), (559, 69680), (670, 58136), (676, 57620), (688, 56615), (845, 46096), (860, 45292), (871, 44720), (1040, 37453), (1072, 36335), (1118, 34840), (1340, 29068), (1352, 28810), (1690, 23048), (1720, 22646), (1742, 22360), (2236, 17420), (2680, 14534), (2704, 14405), (2795, 13936), (2881, 13520), (3380, 11524), (3440, 11323), (3484, 11180), (4355, 8944), (4472, 8710), (5360, 7267), (5590, 6968), (5762, 6760)]