127968520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{188189}}^1$

素因数の和:188217

約数の個数: 32

約数和(自身を含む): 304867800

約数和(自身を除く): 176899280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 188189, 376378, 752756, 940945, 1505512, 1881890, 3199213, 3763780, 6398426, 7527560, 12796852, 15996065, 25593704, 31992130, 63984260, 127968520]

約数ペア:

[(1, 127968520), (2, 63984260), (4, 31992130), (5, 25593704), (8, 15996065), (10, 12796852), (17, 7527560), (20, 6398426), (34, 3763780), (40, 3199213), (68, 1881890), (85, 1505512), (136, 940945), (170, 752756), (340, 376378), (680, 188189)]