28028988

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:324

約数の個数: 108

約数和(自身を含む): 81533088

約数和(自身を除く): 53504100

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 169, 204, 221, 234, 271, 306, 338, 442, 468, 507, 542, 612, 663, 676, 813, 884, 1014, 1084, 1326, 1521, 1626, 1989, 2028, 2439, 2652, 2873, 3042, 3252, 3523, 3978, 4607, 4878, 5746, 6084, 7046, 7956, 8619, 9214, 9756, 10569, 11492, 13821, 14092, 17238, 18428, 21138, 25857, 27642, 31707, 34476, 41463, 42276, 45799, 51714, 55284, 59891, 63414, 82926, 91598, 103428, 119782, 126828, 137397, 165852, 179673, 183196, 239564, 274794, 359346, 412191, 539019, 549588, 718692, 778583, 824382, 1078038, 1557166, 1648764, 2156076, 2335749, 3114332, 4671498, 7007247, 9342996, 14014494, 28028988]

約数ペア:

[(1, 28028988), (2, 14014494), (3, 9342996), (4, 7007247), (6, 4671498), (9, 3114332), (12, 2335749), (13, 2156076), (17, 1648764), (18, 1557166), (26, 1078038), (34, 824382), (36, 778583), (39, 718692), (51, 549588), (52, 539019), (68, 412191), (78, 359346), (102, 274794), (117, 239564), (153, 183196), (156, 179673), (169, 165852), (204, 137397), (221, 126828), (234, 119782), (271, 103428), (306, 91598), (338, 82926), (442, 63414), (468, 59891), (507, 55284), (542, 51714), (612, 45799), (663, 42276), (676, 41463), (813, 34476), (884, 31707), (1014, 27642), (1084, 25857), (1326, 21138), (1521, 18428), (1626, 17238), (1989, 14092), (2028, 13821), (2439, 11492), (2652, 10569), (2873, 9756), (3042, 9214), (3252, 8619), (3523, 7956), (3978, 7046), (4607, 6084), (4878, 5746)]