2149804780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{883}}^1$

素因数の和:1103

約数の個数: 96

約数和(自身を含む): 4900896000

約数和(自身を除く): 2751091220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 149, 172, 190, 215, 298, 380, 430, 596, 745, 817, 860, 883, 1490, 1634, 1766, 2831, 2980, 3268, 3532, 4085, 4415, 5662, 6407, 8170, 8830, 11324, 12814, 14155, 16340, 16777, 17660, 25628, 28310, 32035, 33554, 37969, 56620, 64070, 67108, 75938, 83885, 121733, 128140, 131567, 151876, 167770, 189845, 243466, 263134, 335540, 379690, 486932, 526268, 608665, 657835, 721411, 759380, 1217330, 1315670, 1442822, 2434660, 2499773, 2631340, 2885644, 3607055, 4999546, 5657381, 7214110, 9999092, 11314762, 12498865, 14428220, 22629524, 24997730, 28286905, 49995460, 56573810, 107490239, 113147620, 214980478, 429960956, 537451195, 1074902390, 2149804780]

約数ペア:

[(1, 2149804780), (2, 1074902390), (4, 537451195), (5, 429960956), (10, 214980478), (19, 113147620), (20, 107490239), (38, 56573810), (43, 49995460), (76, 28286905), (86, 24997730), (95, 22629524), (149, 14428220), (172, 12498865), (190, 11314762), (215, 9999092), (298, 7214110), (380, 5657381), (430, 4999546), (596, 3607055), (745, 2885644), (817, 2631340), (860, 2499773), (883, 2434660), (1490, 1442822), (1634, 1315670), (1766, 1217330), (2831, 759380), (2980, 721411), (3268, 657835), (3532, 608665), (4085, 526268), (4415, 486932), (5662, 379690), (6407, 335540), (8170, 263134), (8830, 243466), (11324, 189845), (12814, 167770), (14155, 151876), (16340, 131567), (16777, 128140), (17660, 121733), (25628, 83885), (28310, 75938), (32035, 67108), (33554, 64070), (37969, 56620)]