204895120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{82619}}^1$

素因数の和:82663

約数の個数: 40

約数和(自身を含む): 491754240

約数和(自身を除く): 286859120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 82619, 165238, 330476, 413095, 660952, 826190, 1321904, 1652380, 2561189, 3304760, 5122378, 6609520, 10244756, 12805945, 20489512, 25611890, 40979024, 51223780, 102447560, 204895120]

約数ペア:

[(1, 204895120), (2, 102447560), (4, 51223780), (5, 40979024), (8, 25611890), (10, 20489512), (16, 12805945), (20, 10244756), (31, 6609520), (40, 5122378), (62, 3304760), (80, 2561189), (124, 1652380), (155, 1321904), (248, 826190), (310, 660952), (496, 413095), (620, 330476), (1240, 165238), (2480, 82619)]