205124465

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1153}}^1$

素因数の和:1218

約数の個数: 64

約数和(自身を含む): 335010816

約数和(自身を除く): 129886351

約数列:

[1, 5, 7, 13, 17, 23, 35, 65, 85, 91, 115, 119, 161, 221, 299, 391, 455, 595, 805, 1105, 1153, 1495, 1547, 1955, 2093, 2737, 5083, 5765, 7735, 8071, 10465, 13685, 14989, 19601, 25415, 26519, 35581, 40355, 74945, 98005, 104923, 132595, 137207, 177905, 185633, 254813, 344747, 450823, 524615, 686035, 928165, 1274065, 1723735, 1783691, 2254115, 2413229, 3155761, 5860699, 8918455, 12066145, 15778805, 29303495, 41024893, 205124465]

約数ペア:

[(1, 205124465), (5, 41024893), (7, 29303495), (13, 15778805), (17, 12066145), (23, 8918455), (35, 5860699), (65, 3155761), (85, 2413229), (91, 2254115), (115, 1783691), (119, 1723735), (161, 1274065), (221, 928165), (299, 686035), (391, 524615), (455, 450823), (595, 344747), (805, 254813), (1105, 185633), (1153, 177905), (1495, 137207), (1547, 132595), (1955, 104923), (2093, 98005), (2737, 74945), (5083, 40355), (5765, 35581), (7735, 26519), (8071, 25415), (10465, 19601), (13685, 14989)]