259188520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4861}}^1$

素因数の和:4946

約数の個数: 64

約数和(自身を含む): 616112640

約数和(自身を除く): 356924120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1720, 2666, 4861, 5332, 6665, 9722, 10664, 13330, 19444, 24305, 26660, 38888, 48610, 53320, 97220, 150691, 194440, 209023, 301382, 418046, 602764, 753455, 836092, 1045115, 1205528, 1506910, 1672184, 2090230, 3013820, 4180460, 6027640, 6479713, 8360920, 12959426, 25918852, 32398565, 51837704, 64797130, 129594260, 259188520]

約数ペア:

[(1, 259188520), (2, 129594260), (4, 64797130), (5, 51837704), (8, 32398565), (10, 25918852), (20, 12959426), (31, 8360920), (40, 6479713), (43, 6027640), (62, 4180460), (86, 3013820), (124, 2090230), (155, 1672184), (172, 1506910), (215, 1205528), (248, 1045115), (310, 836092), (344, 753455), (430, 602764), (620, 418046), (860, 301382), (1240, 209023), (1333, 194440), (1720, 150691), (2666, 97220), (4861, 53320), (5332, 48610), (6665, 38888), (9722, 26660), (10664, 24305), (13330, 19444)]