28878444

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:154

約数の個数: 180

約数和(自身を含む): 93854376

約数和(自身を除く): 64975932

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 27, 28, 34, 36, 42, 49, 51, 54, 63, 68, 81, 84, 98, 102, 107, 108, 119, 126, 147, 153, 162, 189, 196, 204, 214, 238, 252, 294, 306, 321, 324, 357, 378, 428, 441, 459, 476, 567, 588, 612, 642, 714, 749, 756, 833, 882, 918, 963, 1071, 1134, 1284, 1323, 1377, 1428, 1498, 1666, 1764, 1819, 1836, 1926, 2142, 2247, 2268, 2499, 2646, 2754, 2889, 2996, 3213, 3332, 3638, 3852, 3969, 4284, 4494, 4998, 5243, 5292, 5457, 5508, 5778, 6426, 6741, 7276, 7497, 7938, 8667, 8988, 9639, 9996, 10486, 10914, 11556, 12733, 12852, 13482, 14994, 15729, 15876, 16371, 17334, 19278, 20223, 20972, 21828, 22491, 25466, 26964, 29988, 31458, 32742, 34668, 38199, 38556, 40446, 44982, 47187, 49113, 50932, 60669, 62916, 65484, 67473, 76398, 80892, 89131, 89964, 94374, 98226, 114597, 121338, 134946, 141561, 147339, 152796, 178262, 188748, 196452, 229194, 242676, 267393, 269892, 283122, 294678, 343791, 356524, 424683, 458388, 534786, 566244, 589356, 687582, 802179, 849366, 1031373, 1069572, 1375164, 1604358, 1698732, 2062746, 2406537, 3208716, 4125492, 4813074, 7219611, 9626148, 14439222, 28878444]

約数ペア:

[(1, 28878444), (2, 14439222), (3, 9626148), (4, 7219611), (6, 4813074), (7, 4125492), (9, 3208716), (12, 2406537), (14, 2062746), (17, 1698732), (18, 1604358), (21, 1375164), (27, 1069572), (28, 1031373), (34, 849366), (36, 802179), (42, 687582), (49, 589356), (51, 566244), (54, 534786), (63, 458388), (68, 424683), (81, 356524), (84, 343791), (98, 294678), (102, 283122), (107, 269892), (108, 267393), (119, 242676), (126, 229194), (147, 196452), (153, 188748), (162, 178262), (189, 152796), (196, 147339), (204, 141561), (214, 134946), (238, 121338), (252, 114597), (294, 98226), (306, 94374), (321, 89964), (324, 89131), (357, 80892), (378, 76398), (428, 67473), (441, 65484), (459, 62916), (476, 60669), (567, 50932), (588, 49113), (612, 47187), (642, 44982), (714, 40446), (749, 38556), (756, 38199), (833, 34668), (882, 32742), (918, 31458), (963, 29988), (1071, 26964), (1134, 25466), (1284, 22491), (1323, 21828), (1377, 20972), (1428, 20223), (1498, 19278), (1666, 17334), (1764, 16371), (1819, 15876), (1836, 15729), (1926, 14994), (2142, 13482), (2247, 12852), (2268, 12733), (2499, 11556), (2646, 10914), (2754, 10486), (2889, 9996), (2996, 9639), (3213, 8988), (3332, 8667), (3638, 7938), (3852, 7497), (3969, 7276), (4284, 6741), (4494, 6426), (4998, 5778), (5243, 5508), (5292, 5457)]