30974020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20113}}^1$

素因数の和:20140

約数の個数: 48

約数和(自身を含む): 81099648

約数和(自身を除く): 50125628

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20113, 40226, 80452, 100565, 140791, 201130, 221243, 281582, 402260, 442486, 563164, 703955, 884972, 1106215, 1407910, 1548701, 2212430, 2815820, 3097402, 4424860, 6194804, 7743505, 15487010, 30974020]

約数ペア:

[(1, 30974020), (2, 15487010), (4, 7743505), (5, 6194804), (7, 4424860), (10, 3097402), (11, 2815820), (14, 2212430), (20, 1548701), (22, 1407910), (28, 1106215), (35, 884972), (44, 703955), (55, 563164), (70, 442486), (77, 402260), (110, 281582), (140, 221243), (154, 201130), (220, 140791), (308, 100565), (385, 80452), (770, 40226), (1540, 20113)]