1311998545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 2168664192

約数和(自身を除く): 856665647

約数列:

[1, 5, 11, 13, 17, 19, 23, 55, 65, 85, 95, 115, 143, 169, 187, 209, 221, 247, 253, 299, 323, 361, 391, 437, 715, 845, 935, 1045, 1105, 1235, 1265, 1495, 1615, 1805, 1859, 1955, 2185, 2431, 2717, 2873, 3211, 3289, 3553, 3887, 3971, 4199, 4301, 4693, 4807, 5083, 5681, 6137, 7429, 8303, 9295, 12155, 13585, 14365, 16055, 16445, 17765, 19435, 19855, 20995, 21505, 23465, 24035, 25415, 28405, 30685, 31603, 35321, 37145, 41515, 42757, 46189, 51623, 54587, 55913, 61009, 62491, 66079, 67507, 73853, 79781, 81719, 91333, 96577, 107939, 141151, 158015, 176605, 213785, 230945, 258115, 272935, 279565, 305045, 312455, 330395, 337535, 369265, 398905, 408595, 456665, 482885, 539695, 600457, 671099, 705755, 726869, 812383, 877591, 1037153, 1062347, 1187329, 1255501, 1403207, 1552661, 1834963, 3002285, 3355495, 3634345, 4061915, 4387955, 5185765, 5311735, 5936645, 6277505, 7016035, 7763305, 9174815, 11408683, 13810511, 15435277, 20184593, 23854519, 57043415, 69052555, 77176385, 100922965, 119272595, 262399709, 1311998545]

約数ペア:

[(1, 1311998545), (5, 262399709), (11, 119272595), (13, 100922965), (17, 77176385), (19, 69052555), (23, 57043415), (55, 23854519), (65, 20184593), (85, 15435277), (95, 13810511), (115, 11408683), (143, 9174815), (169, 7763305), (187, 7016035), (209, 6277505), (221, 5936645), (247, 5311735), (253, 5185765), (299, 4387955), (323, 4061915), (361, 3634345), (391, 3355495), (437, 3002285), (715, 1834963), (845, 1552661), (935, 1403207), (1045, 1255501), (1105, 1187329), (1235, 1062347), (1265, 1037153), (1495, 877591), (1615, 812383), (1805, 726869), (1859, 705755), (1955, 671099), (2185, 600457), (2431, 539695), (2717, 482885), (2873, 456665), (3211, 408595), (3289, 398905), (3553, 369265), (3887, 337535), (3971, 330395), (4199, 312455), (4301, 305045), (4693, 279565), (4807, 272935), (5083, 258115), (5681, 230945), (6137, 213785), (7429, 176605), (8303, 158015), (9295, 141151), (12155, 107939), (13585, 96577), (14365, 91333), (16055, 81719), (16445, 79781), (17765, 73853), (19435, 67507), (19855, 66079), (20995, 62491), (21505, 61009), (23465, 55913), (24035, 54587), (25415, 51623), (28405, 46189), (30685, 42757), (31603, 41515), (35321, 37145)]