20042300

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 45830400

約数和(自身を除く): 25788100

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 59, 79, 86, 100, 118, 158, 172, 215, 236, 295, 316, 395, 430, 590, 790, 860, 1075, 1180, 1475, 1580, 1975, 2150, 2537, 2950, 3397, 3950, 4300, 4661, 5074, 5900, 6794, 7900, 9322, 10148, 12685, 13588, 16985, 18644, 23305, 25370, 33970, 46610, 50740, 63425, 67940, 84925, 93220, 116525, 126850, 169850, 200423, 233050, 253700, 339700, 400846, 466100, 801692, 1002115, 2004230, 4008460, 5010575, 10021150, 20042300]

約数ペア:

[(1, 20042300), (2, 10021150), (4, 5010575), (5, 4008460), (10, 2004230), (20, 1002115), (25, 801692), (43, 466100), (50, 400846), (59, 339700), (79, 253700), (86, 233050), (100, 200423), (118, 169850), (158, 126850), (172, 116525), (215, 93220), (236, 84925), (295, 67940), (316, 63425), (395, 50740), (430, 46610), (590, 33970), (790, 25370), (860, 23305), (1075, 18644), (1180, 16985), (1475, 13588), (1580, 12685), (1975, 10148), (2150, 9322), (2537, 7900), (2950, 6794), (3397, 5900), (3950, 5074), (4300, 4661)]