20020812

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 55157760

約数和(自身を除く): 35136948

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 79, 84, 98, 147, 158, 196, 237, 294, 316, 431, 474, 553, 588, 862, 948, 1106, 1293, 1659, 1724, 2212, 2586, 3017, 3318, 3871, 5172, 6034, 6636, 7742, 9051, 11613, 12068, 15484, 18102, 21119, 23226, 34049, 36204, 42238, 46452, 63357, 68098, 84476, 102147, 126714, 136196, 204294, 238343, 253428, 408588, 476686, 715029, 953372, 1430058, 1668401, 2860116, 3336802, 5005203, 6673604, 10010406, 20020812]

約数ペア:

[(1, 20020812), (2, 10010406), (3, 6673604), (4, 5005203), (6, 3336802), (7, 2860116), (12, 1668401), (14, 1430058), (21, 953372), (28, 715029), (42, 476686), (49, 408588), (79, 253428), (84, 238343), (98, 204294), (147, 136196), (158, 126714), (196, 102147), (237, 84476), (294, 68098), (316, 63357), (431, 46452), (474, 42238), (553, 36204), (588, 34049), (862, 23226), (948, 21119), (1106, 18102), (1293, 15484), (1659, 12068), (1724, 11613), (2212, 9051), (2586, 7742), (3017, 6636), (3318, 6034), (3871, 5172)]