1276987040

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{162881}}^1$

素因数の和:162910

約数の個数: 72

約数和(自身を含む): 3509455572

約数和(自身を除く): 2232468532

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 162881, 325762, 651524, 814405, 1140167, 1303048, 1628810, 2280334, 2606096, 3257620, 4560668, 5212192, 5700835, 6515240, 7981169, 9121336, 11401670, 13030480, 15962338, 18242672, 22803340, 26060960, 31924676, 36485344, 39905845, 45606680, 63849352, 79811690, 91213360, 127698704, 159623380, 182426720, 255397408, 319246760, 638493520, 1276987040]

約数ペア:

[(1, 1276987040), (2, 638493520), (4, 319246760), (5, 255397408), (7, 182426720), (8, 159623380), (10, 127698704), (14, 91213360), (16, 79811690), (20, 63849352), (28, 45606680), (32, 39905845), (35, 36485344), (40, 31924676), (49, 26060960), (56, 22803340), (70, 18242672), (80, 15962338), (98, 13030480), (112, 11401670), (140, 9121336), (160, 7981169), (196, 6515240), (224, 5700835), (245, 5212192), (280, 4560668), (392, 3257620), (490, 2606096), (560, 2280334), (784, 1628810), (980, 1303048), (1120, 1140167), (1568, 814405), (1960, 651524), (3920, 325762), (7840, 162881)]