28465240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 67651200

約数和(自身を除く): 39185960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 53, 58, 106, 116, 145, 212, 232, 265, 290, 424, 463, 530, 580, 926, 1060, 1160, 1537, 1852, 2120, 2315, 3074, 3704, 4630, 6148, 7685, 9260, 12296, 13427, 15370, 18520, 24539, 26854, 30740, 49078, 53708, 61480, 67135, 98156, 107416, 122695, 134270, 196312, 245390, 268540, 490780, 537080, 711631, 981560, 1423262, 2846524, 3558155, 5693048, 7116310, 14232620, 28465240]

約数ペア:

[(1, 28465240), (2, 14232620), (4, 7116310), (5, 5693048), (8, 3558155), (10, 2846524), (20, 1423262), (29, 981560), (40, 711631), (53, 537080), (58, 490780), (106, 268540), (116, 245390), (145, 196312), (212, 134270), (232, 122695), (265, 107416), (290, 98156), (424, 67135), (463, 61480), (530, 53708), (580, 49078), (926, 30740), (1060, 26854), (1160, 24539), (1537, 18520), (1852, 15370), (2120, 13427), (2315, 12296), (3074, 9260), (3704, 7685), (4630, 6148)]