18721919488

素因数分解:

$2^9\times {\mathrm{37}}^1\times {\mathrm{281}}^1\times {\mathrm{3517}}^1$

素因数の和:3853

約数の個数: 80

約数和(自身を含む): 38565962424

約数和(自身を除く): 19844042936

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 256, 281, 296, 512, 562, 592, 1124, 1184, 2248, 2368, 3517, 4496, 4736, 7034, 8992, 9472, 10397, 14068, 17984, 18944, 20794, 28136, 35968, 41588, 56272, 71936, 83176, 112544, 130129, 143872, 166352, 225088, 260258, 332704, 450176, 520516, 665408, 900352, 988277, 1041032, 1330816, 1800704, 1976554, 2082064, 2661632, 3953108, 4164128, 5323264, 7906216, 8328256, 15812432, 16656512, 31624864, 33313024, 36566249, 63249728, 66626048, 73132498, 126499456, 146264996, 252998912, 292529992, 505997824, 585059984, 1170119968, 2340239936, 4680479872, 9360959744, 18721919488]

約数ペア:

[(1, 18721919488), (2, 9360959744), (4, 4680479872), (8, 2340239936), (16, 1170119968), (32, 585059984), (37, 505997824), (64, 292529992), (74, 252998912), (128, 146264996), (148, 126499456), (256, 73132498), (281, 66626048), (296, 63249728), (512, 36566249), (562, 33313024), (592, 31624864), (1124, 16656512), (1184, 15812432), (2248, 8328256), (2368, 7906216), (3517, 5323264), (4496, 4164128), (4736, 3953108), (7034, 2661632), (8992, 2082064), (9472, 1976554), (10397, 1800704), (14068, 1330816), (17984, 1041032), (18944, 988277), (20794, 900352), (28136, 665408), (35968, 520516), (41588, 450176), (56272, 332704), (71936, 260258), (83176, 225088), (112544, 166352), (130129, 143872)]