31188520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{971}}^1$

素因数の和:1066

約数の個数: 64

約数和(自身を含む): 77682240

約数和(自身を除く): 46493720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 584, 730, 803, 971, 1460, 1606, 1942, 2920, 3212, 3884, 4015, 4855, 6424, 7768, 8030, 9710, 10681, 16060, 19420, 21362, 32120, 38840, 42724, 53405, 70883, 85448, 106810, 141766, 213620, 283532, 354415, 427240, 567064, 708830, 779713, 1417660, 1559426, 2835320, 3118852, 3898565, 6237704, 7797130, 15594260, 31188520]

約数ペア:

[(1, 31188520), (2, 15594260), (4, 7797130), (5, 6237704), (8, 3898565), (10, 3118852), (11, 2835320), (20, 1559426), (22, 1417660), (40, 779713), (44, 708830), (55, 567064), (73, 427240), (88, 354415), (110, 283532), (146, 213620), (220, 141766), (292, 106810), (365, 85448), (440, 70883), (584, 53405), (730, 42724), (803, 38840), (971, 32120), (1460, 21362), (1606, 19420), (1942, 16060), (2920, 10681), (3212, 9710), (3884, 8030), (4015, 7768), (4855, 6424)]