19790028

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:324

約数の個数: 96

約数和(自身を含む): 55480320

約数和(自身を除く): 35690292

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 31, 36, 46, 54, 62, 69, 92, 93, 108, 124, 138, 186, 207, 257, 276, 279, 372, 414, 514, 558, 621, 713, 771, 828, 837, 1028, 1116, 1242, 1426, 1542, 1674, 2139, 2313, 2484, 2852, 3084, 3348, 4278, 4626, 5911, 6417, 6939, 7967, 8556, 9252, 11822, 12834, 13878, 15934, 17733, 19251, 23644, 23901, 25668, 27756, 31868, 35466, 38502, 47802, 53199, 70932, 71703, 77004, 95604, 106398, 143406, 159597, 183241, 212796, 215109, 286812, 319194, 366482, 430218, 549723, 638388, 732964, 860436, 1099446, 1649169, 2198892, 3298338, 4947507, 6596676, 9895014, 19790028]

約数ペア:

[(1, 19790028), (2, 9895014), (3, 6596676), (4, 4947507), (6, 3298338), (9, 2198892), (12, 1649169), (18, 1099446), (23, 860436), (27, 732964), (31, 638388), (36, 549723), (46, 430218), (54, 366482), (62, 319194), (69, 286812), (92, 215109), (93, 212796), (108, 183241), (124, 159597), (138, 143406), (186, 106398), (207, 95604), (257, 77004), (276, 71703), (279, 70932), (372, 53199), (414, 47802), (514, 38502), (558, 35466), (621, 31868), (713, 27756), (771, 25668), (828, 23901), (837, 23644), (1028, 19251), (1116, 17733), (1242, 15934), (1426, 13878), (1542, 12834), (1674, 11822), (2139, 9252), (2313, 8556), (2484, 7967), (2852, 6939), (3084, 6417), (3348, 5911), (4278, 4626)]