28509572

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 63814464

約数和(自身を除く): 35304892

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 67, 91, 98, 134, 167, 182, 196, 268, 334, 364, 469, 637, 668, 871, 938, 1169, 1274, 1742, 1876, 2171, 2338, 2548, 3283, 3484, 4342, 4676, 6097, 6566, 8183, 8684, 11189, 12194, 13132, 15197, 16366, 22378, 24388, 30394, 32732, 42679, 44756, 60788, 78323, 85358, 106379, 145457, 156646, 170716, 212758, 290914, 313292, 425516, 548261, 581828, 1018199, 1096522, 2036398, 2193044, 4072796, 7127393, 14254786, 28509572]

約数ペア:

[(1, 28509572), (2, 14254786), (4, 7127393), (7, 4072796), (13, 2193044), (14, 2036398), (26, 1096522), (28, 1018199), (49, 581828), (52, 548261), (67, 425516), (91, 313292), (98, 290914), (134, 212758), (167, 170716), (182, 156646), (196, 145457), (268, 106379), (334, 85358), (364, 78323), (469, 60788), (637, 44756), (668, 42679), (871, 32732), (938, 30394), (1169, 24388), (1274, 22378), (1742, 16366), (1876, 15197), (2171, 13132), (2338, 12194), (2548, 11189), (3283, 8684), (3484, 8183), (4342, 6566), (4676, 6097)]