25730985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 49674240

約数和(自身を除く): 23943255

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 43, 105, 123, 129, 139, 205, 215, 287, 301, 417, 615, 645, 695, 861, 903, 973, 1435, 1505, 1763, 2085, 2919, 4305, 4515, 4865, 5289, 5699, 5977, 8815, 12341, 14595, 17097, 17931, 26445, 28495, 29885, 37023, 39893, 41839, 61705, 85485, 89655, 119679, 125517, 185115, 199465, 209195, 245057, 598395, 627585, 735171, 1225285, 1715399, 3675855, 5146197, 8576995, 25730985]

約数ペア:

[(1, 25730985), (3, 8576995), (5, 5146197), (7, 3675855), (15, 1715399), (21, 1225285), (35, 735171), (41, 627585), (43, 598395), (105, 245057), (123, 209195), (129, 199465), (139, 185115), (205, 125517), (215, 119679), (287, 89655), (301, 85485), (417, 61705), (615, 41839), (645, 39893), (695, 37023), (861, 29885), (903, 28495), (973, 26445), (1435, 17931), (1505, 17097), (1763, 14595), (2085, 12341), (2919, 8815), (4305, 5977), (4515, 5699), (4865, 5289)]