15995525

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 24998400

約数和(自身を除く): 9002875

約数列:

[1, 5, 7, 13, 25, 35, 65, 79, 89, 91, 175, 325, 395, 445, 455, 553, 623, 1027, 1157, 1975, 2225, 2275, 2765, 3115, 5135, 5785, 7031, 7189, 8099, 13825, 15575, 25675, 28925, 35155, 35945, 40495, 49217, 91403, 175775, 179725, 202475, 246085, 457015, 639821, 1230425, 2285075, 3199105, 15995525]

約数ペア:

[(1, 15995525), (5, 3199105), (7, 2285075), (13, 1230425), (25, 639821), (35, 457015), (65, 246085), (79, 202475), (89, 179725), (91, 175775), (175, 91403), (325, 49217), (395, 40495), (445, 35945), (455, 35155), (553, 28925), (623, 25675), (1027, 15575), (1157, 13825), (1975, 8099), (2225, 7189), (2275, 7031), (2765, 5785), (3115, 5135)]