2637166640

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{2153}}^1$

素因数の和:2478

約数の個数: 80

約数和(自身を含む): 6259661856

約数和(自身を除く): 3622495216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 251, 305, 488, 502, 610, 976, 1004, 1220, 1255, 2008, 2153, 2440, 2510, 4016, 4306, 4880, 5020, 8612, 10040, 10765, 15311, 17224, 20080, 21530, 30622, 34448, 43060, 61244, 76555, 86120, 122488, 131333, 153110, 172240, 244976, 262666, 306220, 525332, 540403, 612440, 656665, 1050664, 1080806, 1224880, 1313330, 2101328, 2161612, 2626660, 2702015, 4323224, 5253320, 5404030, 8646448, 10506640, 10808060, 21616120, 32964583, 43232240, 65929166, 131858332, 164822915, 263716664, 329645830, 527433328, 659291660, 1318583320, 2637166640]

約数ペア:

[(1, 2637166640), (2, 1318583320), (4, 659291660), (5, 527433328), (8, 329645830), (10, 263716664), (16, 164822915), (20, 131858332), (40, 65929166), (61, 43232240), (80, 32964583), (122, 21616120), (244, 10808060), (251, 10506640), (305, 8646448), (488, 5404030), (502, 5253320), (610, 4323224), (976, 2702015), (1004, 2626660), (1220, 2161612), (1255, 2101328), (2008, 1313330), (2153, 1224880), (2440, 1080806), (2510, 1050664), (4016, 656665), (4306, 612440), (4880, 540403), (5020, 525332), (8612, 306220), (10040, 262666), (10765, 244976), (15311, 172240), (17224, 153110), (20080, 131333), (21530, 122488), (30622, 86120), (34448, 76555), (43060, 61244)]