27996228

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{367}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 76888448

約数和(自身を除く): 48892220

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 163, 234, 326, 367, 468, 489, 652, 734, 978, 1101, 1467, 1468, 1956, 2119, 2202, 2934, 3303, 4238, 4404, 4771, 5868, 6357, 6606, 8476, 9542, 12714, 13212, 14313, 19071, 19084, 25428, 28626, 38142, 42939, 57252, 59821, 76284, 85878, 119642, 171756, 179463, 239284, 358926, 538389, 717852, 777673, 1076778, 1555346, 2153556, 2333019, 3110692, 4666038, 6999057, 9332076, 13998114, 27996228]

約数ペア:

[(1, 27996228), (2, 13998114), (3, 9332076), (4, 6999057), (6, 4666038), (9, 3110692), (12, 2333019), (13, 2153556), (18, 1555346), (26, 1076778), (36, 777673), (39, 717852), (52, 538389), (78, 358926), (117, 239284), (156, 179463), (163, 171756), (234, 119642), (326, 85878), (367, 76284), (468, 59821), (489, 57252), (652, 42939), (734, 38142), (978, 28626), (1101, 25428), (1467, 19084), (1468, 19071), (1956, 14313), (2119, 13212), (2202, 12714), (2934, 9542), (3303, 8476), (4238, 6606), (4404, 6357), (4771, 5868)]