641855900

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{18713}}^1$

素因数の和:18748

約数の個数: 72

約数和(自身を含む): 1624375200

約数和(自身を除く): 982519300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 343, 350, 490, 686, 700, 980, 1225, 1372, 1715, 2450, 3430, 4900, 6860, 8575, 17150, 18713, 34300, 37426, 74852, 93565, 130991, 187130, 261982, 374260, 467825, 523964, 654955, 916937, 935650, 1309910, 1833874, 1871300, 2619820, 3274775, 3667748, 4584685, 6418559, 6549550, 9169370, 12837118, 13099100, 18338740, 22923425, 25674236, 32092795, 45846850, 64185590, 91693700, 128371180, 160463975, 320927950, 641855900]

約数ペア:

[(1, 641855900), (2, 320927950), (4, 160463975), (5, 128371180), (7, 91693700), (10, 64185590), (14, 45846850), (20, 32092795), (25, 25674236), (28, 22923425), (35, 18338740), (49, 13099100), (50, 12837118), (70, 9169370), (98, 6549550), (100, 6418559), (140, 4584685), (175, 3667748), (196, 3274775), (245, 2619820), (343, 1871300), (350, 1833874), (490, 1309910), (686, 935650), (700, 916937), (980, 654955), (1225, 523964), (1372, 467825), (1715, 374260), (2450, 261982), (3430, 187130), (4900, 130991), (6860, 93565), (8575, 74852), (17150, 37426), (18713, 34300)]