28721550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{103}}^1$

素因数の和:155

約数の個数: 144

約数和(自身を含む): 84958848

約数和(自身を除く): 56237298

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 25, 26, 30, 33, 39, 50, 55, 65, 66, 75, 78, 103, 110, 130, 143, 150, 165, 169, 195, 206, 275, 286, 309, 325, 330, 338, 390, 429, 507, 515, 550, 618, 650, 715, 825, 845, 858, 975, 1014, 1030, 1133, 1339, 1430, 1545, 1650, 1690, 1859, 1950, 2145, 2266, 2535, 2575, 2678, 3090, 3399, 3575, 3718, 4017, 4225, 4290, 5070, 5150, 5577, 5665, 6695, 6798, 7150, 7725, 8034, 8450, 9295, 10725, 11154, 11330, 12675, 13390, 14729, 15450, 16995, 17407, 18590, 20085, 21450, 25350, 27885, 28325, 29458, 33475, 33990, 34814, 40170, 44187, 46475, 52221, 55770, 56650, 66950, 73645, 84975, 87035, 88374, 92950, 100425, 104442, 139425, 147290, 169950, 174070, 191477, 200850, 220935, 261105, 278850, 368225, 382954, 435175, 441870, 522210, 574431, 736450, 870350, 957385, 1104675, 1148862, 1305525, 1914770, 2209350, 2611050, 2872155, 4786925, 5744310, 9573850, 14360775, 28721550]

約数ペア:

[(1, 28721550), (2, 14360775), (3, 9573850), (5, 5744310), (6, 4786925), (10, 2872155), (11, 2611050), (13, 2209350), (15, 1914770), (22, 1305525), (25, 1148862), (26, 1104675), (30, 957385), (33, 870350), (39, 736450), (50, 574431), (55, 522210), (65, 441870), (66, 435175), (75, 382954), (78, 368225), (103, 278850), (110, 261105), (130, 220935), (143, 200850), (150, 191477), (165, 174070), (169, 169950), (195, 147290), (206, 139425), (275, 104442), (286, 100425), (309, 92950), (325, 88374), (330, 87035), (338, 84975), (390, 73645), (429, 66950), (507, 56650), (515, 55770), (550, 52221), (618, 46475), (650, 44187), (715, 40170), (825, 34814), (845, 33990), (858, 33475), (975, 29458), (1014, 28325), (1030, 27885), (1133, 25350), (1339, 21450), (1430, 20085), (1545, 18590), (1650, 17407), (1690, 16995), (1859, 15450), (1950, 14729), (2145, 13390), (2266, 12675), (2535, 11330), (2575, 11154), (2678, 10725), (3090, 9295), (3399, 8450), (3575, 8034), (3718, 7725), (4017, 7150), (4225, 6798), (4290, 6695), (5070, 5665), (5150, 5577)]