28356692

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 64350720

約数和(自身を除く): 35994028

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 217, 359, 364, 403, 434, 637, 718, 806, 868, 1274, 1436, 1519, 1612, 2513, 2548, 2821, 3038, 4667, 5026, 5642, 6076, 9334, 10052, 11129, 11284, 17591, 18668, 19747, 22258, 32669, 35182, 39494, 44516, 65338, 70364, 77903, 78988, 130676, 144677, 155806, 228683, 289354, 311612, 457366, 545321, 578708, 914732, 1012739, 1090642, 2025478, 2181284, 4050956, 7089173, 14178346, 28356692]

約数ペア:

[(1, 28356692), (2, 14178346), (4, 7089173), (7, 4050956), (13, 2181284), (14, 2025478), (26, 1090642), (28, 1012739), (31, 914732), (49, 578708), (52, 545321), (62, 457366), (91, 311612), (98, 289354), (124, 228683), (182, 155806), (196, 144677), (217, 130676), (359, 78988), (364, 77903), (403, 70364), (434, 65338), (637, 44516), (718, 39494), (806, 35182), (868, 32669), (1274, 22258), (1436, 19747), (1519, 18668), (1612, 17591), (2513, 11284), (2548, 11129), (2821, 10052), (3038, 9334), (4667, 6076), (5026, 5642)]