31389952

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 69757632

約数和(自身を除く): 38367680

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 71, 88, 128, 142, 157, 176, 256, 284, 314, 352, 568, 628, 704, 781, 1136, 1256, 1408, 1562, 1727, 2272, 2512, 2816, 3124, 3454, 4544, 5024, 6248, 6908, 9088, 10048, 11147, 12496, 13816, 18176, 20096, 22294, 24992, 27632, 40192, 44588, 49984, 55264, 89176, 99968, 110528, 122617, 178352, 199936, 221056, 245234, 356704, 442112, 490468, 713408, 980936, 1426816, 1961872, 2853632, 3923744, 7847488, 15694976, 31389952]

約数ペア:

[(1, 31389952), (2, 15694976), (4, 7847488), (8, 3923744), (11, 2853632), (16, 1961872), (22, 1426816), (32, 980936), (44, 713408), (64, 490468), (71, 442112), (88, 356704), (128, 245234), (142, 221056), (157, 199936), (176, 178352), (256, 122617), (284, 110528), (314, 99968), (352, 89176), (568, 55264), (628, 49984), (704, 44588), (781, 40192), (1136, 27632), (1256, 24992), (1408, 22294), (1562, 20096), (1727, 18176), (2272, 13816), (2512, 12496), (2816, 11147), (3124, 10048), (3454, 9088), (4544, 6908), (5024, 6248)]