18981083744

素因数分解:

$2^5\times 7^2\times {\mathrm{31}}^1\times {\mathrm{390493}}^1$

素因数の和:390548

約数の個数: 72

約数和(自身を含む): 44872446528

約数和(自身を除く): 25891362784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 62, 98, 112, 124, 196, 217, 224, 248, 392, 434, 496, 784, 868, 992, 1519, 1568, 1736, 3038, 3472, 6076, 6944, 12152, 24304, 48608, 390493, 780986, 1561972, 2733451, 3123944, 5466902, 6247888, 10933804, 12105283, 12495776, 19134157, 21867608, 24210566, 38268314, 43735216, 48421132, 76536628, 84736981, 87470432, 96842264, 153073256, 169473962, 193684528, 306146512, 338947924, 387369056, 593158867, 612293024, 677895848, 1186317734, 1355791696, 2372635468, 2711583392, 4745270936, 9490541872, 18981083744]

約数ペア:

[(1, 18981083744), (2, 9490541872), (4, 4745270936), (7, 2711583392), (8, 2372635468), (14, 1355791696), (16, 1186317734), (28, 677895848), (31, 612293024), (32, 593158867), (49, 387369056), (56, 338947924), (62, 306146512), (98, 193684528), (112, 169473962), (124, 153073256), (196, 96842264), (217, 87470432), (224, 84736981), (248, 76536628), (392, 48421132), (434, 43735216), (496, 38268314), (784, 24210566), (868, 21867608), (992, 19134157), (1519, 12495776), (1568, 12105283), (1736, 10933804), (3038, 6247888), (3472, 5466902), (6076, 3123944), (6944, 2733451), (12152, 1561972), (24304, 780986), (48608, 390493)]