28757325

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 50173376

約数和(自身を除く): 21416051

約数列:

[1, 3, 5, 15, 25, 37, 43, 75, 111, 129, 185, 215, 241, 555, 645, 723, 925, 1075, 1205, 1591, 2775, 3225, 3615, 4773, 6025, 7955, 8917, 10363, 18075, 23865, 26751, 31089, 39775, 44585, 51815, 119325, 133755, 155445, 222925, 259075, 383431, 668775, 777225, 1150293, 1917155, 5751465, 9585775, 28757325]

約数ペア:

[(1, 28757325), (3, 9585775), (5, 5751465), (15, 1917155), (25, 1150293), (37, 777225), (43, 668775), (75, 383431), (111, 259075), (129, 222925), (185, 155445), (215, 133755), (241, 119325), (555, 51815), (645, 44585), (723, 39775), (925, 31089), (1075, 26751), (1205, 23865), (1591, 18075), (2775, 10363), (3225, 8917), (3615, 7955), (4773, 6025)]