20731590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:554

約数の個数: 96

約数和(自身を含む): 60293376

約数和(自身を除く): 39561786

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 43, 45, 55, 66, 86, 90, 99, 110, 129, 165, 198, 215, 258, 330, 387, 430, 473, 487, 495, 645, 774, 946, 974, 990, 1290, 1419, 1461, 1935, 2365, 2435, 2838, 2922, 3870, 4257, 4383, 4730, 4870, 5357, 7095, 7305, 8514, 8766, 10714, 14190, 14610, 16071, 20941, 21285, 21915, 26785, 32142, 41882, 42570, 43830, 48213, 53570, 62823, 80355, 96426, 104705, 125646, 160710, 188469, 209410, 230351, 241065, 314115, 376938, 460702, 482130, 628230, 691053, 942345, 1151755, 1382106, 1884690, 2073159, 2303510, 3455265, 4146318, 6910530, 10365795, 20731590]

約数ペア:

[(1, 20731590), (2, 10365795), (3, 6910530), (5, 4146318), (6, 3455265), (9, 2303510), (10, 2073159), (11, 1884690), (15, 1382106), (18, 1151755), (22, 942345), (30, 691053), (33, 628230), (43, 482130), (45, 460702), (55, 376938), (66, 314115), (86, 241065), (90, 230351), (99, 209410), (110, 188469), (129, 160710), (165, 125646), (198, 104705), (215, 96426), (258, 80355), (330, 62823), (387, 53570), (430, 48213), (473, 43830), (487, 42570), (495, 41882), (645, 32142), (774, 26785), (946, 21915), (974, 21285), (990, 20941), (1290, 16071), (1419, 14610), (1461, 14190), (1935, 10714), (2365, 8766), (2435, 8514), (2838, 7305), (2922, 7095), (3870, 5357), (4257, 4870), (4383, 4730)]