20406913240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{818897}}^1$

素因数の和:819004

約数の個数: 64

約数和(自身を含む): 53064590400

約数和(自身を除く): 32657677160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1780, 2492, 3115, 3560, 4984, 6230, 12460, 24920, 818897, 1637794, 3275588, 4094485, 5732279, 6551176, 8188970, 11464558, 16377940, 22929116, 28661395, 32755880, 45858232, 57322790, 72881833, 114645580, 145763666, 229291160, 291527332, 364409165, 510172831, 583054664, 728818330, 1020345662, 1457636660, 2040691324, 2550864155, 2915273320, 4081382648, 5101728310, 10203456620, 20406913240]

約数ペア:

[(1, 20406913240), (2, 10203456620), (4, 5101728310), (5, 4081382648), (7, 2915273320), (8, 2550864155), (10, 2040691324), (14, 1457636660), (20, 1020345662), (28, 728818330), (35, 583054664), (40, 510172831), (56, 364409165), (70, 291527332), (89, 229291160), (140, 145763666), (178, 114645580), (280, 72881833), (356, 57322790), (445, 45858232), (623, 32755880), (712, 28661395), (890, 22929116), (1246, 16377940), (1780, 11464558), (2492, 8188970), (3115, 6551176), (3560, 5732279), (4984, 4094485), (6230, 3275588), (12460, 1637794), (24920, 818897)]