28039284

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:356

約数の個数: 144

約数和(自身を含む): 90749568

約数和(自身を除く): 62710284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 52, 54, 63, 78, 81, 84, 91, 108, 117, 126, 156, 162, 182, 189, 234, 243, 252, 273, 317, 324, 351, 364, 378, 468, 486, 546, 567, 634, 702, 756, 819, 951, 972, 1053, 1092, 1134, 1268, 1404, 1638, 1701, 1902, 2106, 2219, 2268, 2457, 2853, 3159, 3276, 3402, 3804, 4121, 4212, 4438, 4914, 5706, 6318, 6657, 6804, 7371, 8242, 8559, 8876, 9828, 11412, 12363, 12636, 13314, 14742, 16484, 17118, 19971, 22113, 24726, 25677, 26628, 28847, 29484, 34236, 37089, 39942, 44226, 49452, 51354, 57694, 59913, 74178, 77031, 79884, 86541, 88452, 102708, 111267, 115388, 119826, 148356, 154062, 173082, 179739, 222534, 239652, 259623, 308124, 333801, 346164, 359478, 445068, 519246, 539217, 667602, 718956, 778869, 1001403, 1038492, 1078434, 1335204, 1557738, 2002806, 2156868, 2336607, 3115476, 4005612, 4673214, 7009821, 9346428, 14019642, 28039284]

約数ペア:

[(1, 28039284), (2, 14019642), (3, 9346428), (4, 7009821), (6, 4673214), (7, 4005612), (9, 3115476), (12, 2336607), (13, 2156868), (14, 2002806), (18, 1557738), (21, 1335204), (26, 1078434), (27, 1038492), (28, 1001403), (36, 778869), (39, 718956), (42, 667602), (52, 539217), (54, 519246), (63, 445068), (78, 359478), (81, 346164), (84, 333801), (91, 308124), (108, 259623), (117, 239652), (126, 222534), (156, 179739), (162, 173082), (182, 154062), (189, 148356), (234, 119826), (243, 115388), (252, 111267), (273, 102708), (317, 88452), (324, 86541), (351, 79884), (364, 77031), (378, 74178), (468, 59913), (486, 57694), (546, 51354), (567, 49452), (634, 44226), (702, 39942), (756, 37089), (819, 34236), (951, 29484), (972, 28847), (1053, 26628), (1092, 25677), (1134, 24726), (1268, 22113), (1404, 19971), (1638, 17118), (1701, 16484), (1902, 14742), (2106, 13314), (2219, 12636), (2268, 12363), (2457, 11412), (2853, 9828), (3159, 8876), (3276, 8559), (3402, 8242), (3804, 7371), (4121, 6804), (4212, 6657), (4438, 6318), (4914, 5706)]