15998387440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{271}}^2\times {\mathrm{389}}^1$

素因数の和:951

約数の個数: 120

約数和(自身を含む): 42777128160

約数和(自身を除く): 26778740720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 271, 280, 389, 542, 560, 778, 1084, 1355, 1556, 1897, 1945, 2168, 2710, 2723, 3112, 3794, 3890, 4336, 5420, 5446, 6224, 7588, 7780, 9485, 10840, 10892, 13615, 15176, 15560, 18970, 21680, 21784, 27230, 30352, 31120, 37940, 43568, 54460, 73441, 75880, 105419, 108920, 146882, 151760, 210838, 217840, 293764, 367205, 421676, 514087, 527095, 587528, 734410, 737933, 843352, 1028174, 1054190, 1175056, 1468820, 1475866, 1686704, 2056348, 2108380, 2570435, 2937640, 2951732, 3689665, 4112696, 4216760, 5140870, 5875280, 5903464, 7379330, 8225392, 8433520, 10281740, 11806928, 14758660, 20563480, 28568549, 29517320, 41126960, 57137098, 59034640, 114274196, 142842745, 199979843, 228548392, 285685490, 399959686, 457096784, 571370980, 799919372, 999899215, 1142741960, 1599838744, 1999798430, 2285483920, 3199677488, 3999596860, 7999193720, 15998387440]

約数ペア:

[(1, 15998387440), (2, 7999193720), (4, 3999596860), (5, 3199677488), (7, 2285483920), (8, 1999798430), (10, 1599838744), (14, 1142741960), (16, 999899215), (20, 799919372), (28, 571370980), (35, 457096784), (40, 399959686), (56, 285685490), (70, 228548392), (80, 199979843), (112, 142842745), (140, 114274196), (271, 59034640), (280, 57137098), (389, 41126960), (542, 29517320), (560, 28568549), (778, 20563480), (1084, 14758660), (1355, 11806928), (1556, 10281740), (1897, 8433520), (1945, 8225392), (2168, 7379330), (2710, 5903464), (2723, 5875280), (3112, 5140870), (3794, 4216760), (3890, 4112696), (4336, 3689665), (5420, 2951732), (5446, 2937640), (6224, 2570435), (7588, 2108380), (7780, 2056348), (9485, 1686704), (10840, 1475866), (10892, 1468820), (13615, 1175056), (15176, 1054190), (15560, 1028174), (18970, 843352), (21680, 737933), (21784, 734410), (27230, 587528), (30352, 527095), (31120, 514087), (37940, 421676), (43568, 367205), (54460, 293764), (73441, 217840), (75880, 210838), (105419, 151760), (108920, 146882)]