18980856

素因数分解:

$2^3\times 3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 53913600

約数和(自身を除く): 34932744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 47, 71, 72, 79, 94, 141, 142, 158, 188, 213, 237, 282, 284, 316, 376, 423, 426, 474, 564, 568, 632, 639, 711, 846, 852, 948, 1128, 1278, 1422, 1692, 1704, 1896, 2556, 2844, 3337, 3384, 3713, 5112, 5609, 5688, 6674, 7426, 10011, 11139, 11218, 13348, 14852, 16827, 20022, 22278, 22436, 26696, 29704, 30033, 33417, 33654, 40044, 44556, 44872, 50481, 60066, 66834, 67308, 80088, 89112, 100962, 120132, 133668, 134616, 201924, 240264, 263623, 267336, 403848, 527246, 790869, 1054492, 1581738, 2108984, 2372607, 3163476, 4745214, 6326952, 9490428, 18980856]

約数ペア:

[(1, 18980856), (2, 9490428), (3, 6326952), (4, 4745214), (6, 3163476), (8, 2372607), (9, 2108984), (12, 1581738), (18, 1054492), (24, 790869), (36, 527246), (47, 403848), (71, 267336), (72, 263623), (79, 240264), (94, 201924), (141, 134616), (142, 133668), (158, 120132), (188, 100962), (213, 89112), (237, 80088), (282, 67308), (284, 66834), (316, 60066), (376, 50481), (423, 44872), (426, 44556), (474, 40044), (564, 33654), (568, 33417), (632, 30033), (639, 29704), (711, 26696), (846, 22436), (852, 22278), (948, 20022), (1128, 16827), (1278, 14852), (1422, 13348), (1692, 11218), (1704, 11139), (1896, 10011), (2556, 7426), (2844, 6674), (3337, 5688), (3384, 5609), (3713, 5112)]