85855220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{983}}^1$

素因数の和:1400

約数の個数: 48

約数和(自身を含む): 197382528

約数和(自身を除く): 111527308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 397, 794, 983, 1588, 1966, 1985, 3932, 3970, 4367, 4915, 7940, 8734, 9830, 10813, 17468, 19660, 21626, 21835, 43252, 43670, 54065, 87340, 108130, 216260, 390251, 780502, 1561004, 1951255, 3902510, 4292761, 7805020, 8585522, 17171044, 21463805, 42927610, 85855220]

約数ペア:

[(1, 85855220), (2, 42927610), (4, 21463805), (5, 17171044), (10, 8585522), (11, 7805020), (20, 4292761), (22, 3902510), (44, 1951255), (55, 1561004), (110, 780502), (220, 390251), (397, 216260), (794, 108130), (983, 87340), (1588, 54065), (1966, 43670), (1985, 43252), (3932, 21835), (3970, 21626), (4367, 19660), (4915, 17468), (7940, 10813), (8734, 9830)]