2019955220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{71987}}^1$

素因数の和:72080

約数の個数: 48

約数和(自身を含む): 4498962048

約数和(自身を除く): 2479006828

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 305, 460, 610, 1220, 1403, 2806, 5612, 7015, 14030, 28060, 71987, 143974, 287948, 359935, 719870, 1439740, 1655701, 3311402, 4391207, 6622804, 8278505, 8782414, 16557010, 17564828, 21956035, 33114020, 43912070, 87824140, 100997761, 201995522, 403991044, 504988805, 1009977610, 2019955220]

約数ペア:

[(1, 2019955220), (2, 1009977610), (4, 504988805), (5, 403991044), (10, 201995522), (20, 100997761), (23, 87824140), (46, 43912070), (61, 33114020), (92, 21956035), (115, 17564828), (122, 16557010), (230, 8782414), (244, 8278505), (305, 6622804), (460, 4391207), (610, 3311402), (1220, 1655701), (1403, 1439740), (2806, 719870), (5612, 359935), (7015, 287948), (14030, 143974), (28060, 71987)]