205212520

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{547}}^1$

素因数の和:754

約数の個数: 64

約数和(自身を含む): 472288320

約数和(自身を除く): 267075800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 113, 166, 226, 332, 415, 452, 547, 565, 664, 830, 904, 1094, 1130, 1660, 2188, 2260, 2735, 3320, 4376, 4520, 5470, 9379, 10940, 18758, 21880, 37516, 45401, 46895, 61811, 75032, 90802, 93790, 123622, 181604, 187580, 227005, 247244, 309055, 363208, 375160, 454010, 494488, 618110, 908020, 1236220, 1816040, 2472440, 5130313, 10260626, 20521252, 25651565, 41042504, 51303130, 102606260, 205212520]

約数ペア:

[(1, 205212520), (2, 102606260), (4, 51303130), (5, 41042504), (8, 25651565), (10, 20521252), (20, 10260626), (40, 5130313), (83, 2472440), (113, 1816040), (166, 1236220), (226, 908020), (332, 618110), (415, 494488), (452, 454010), (547, 375160), (565, 363208), (664, 309055), (830, 247244), (904, 227005), (1094, 187580), (1130, 181604), (1660, 123622), (2188, 93790), (2260, 90802), (2735, 75032), (3320, 61811), (4376, 46895), (4520, 45401), (5470, 37516), (9379, 21880), (10940, 18758)]