281985615

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{2389}}^1$

素因数の和:2504

約数の個数: 48

約数和(自身を含む): 508553760

約数和(自身を除く): 226568145

約数列:

[1, 3, 5, 9, 15, 43, 45, 61, 129, 183, 215, 305, 387, 549, 645, 915, 1935, 2389, 2623, 2745, 7167, 7869, 11945, 13115, 21501, 23607, 35835, 39345, 102727, 107505, 118035, 145729, 308181, 437187, 513635, 728645, 924543, 1311561, 1540905, 2185935, 4622715, 6266347, 6557805, 18799041, 31331735, 56397123, 93995205, 281985615]

約数ペア:

[(1, 281985615), (3, 93995205), (5, 56397123), (9, 31331735), (15, 18799041), (43, 6557805), (45, 6266347), (61, 4622715), (129, 2185935), (183, 1540905), (215, 1311561), (305, 924543), (387, 728645), (549, 513635), (645, 437187), (915, 308181), (1935, 145729), (2389, 118035), (2623, 107505), (2745, 102727), (7167, 39345), (7869, 35835), (11945, 23607), (13115, 21501)]