20872176

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:151

約数の個数: 120

約数和(自身を含む): 60996096

約数和(自身を除く): 40123920

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 39, 48, 52, 62, 78, 83, 93, 104, 124, 156, 166, 169, 186, 208, 248, 249, 312, 332, 338, 372, 403, 496, 498, 507, 624, 664, 676, 744, 806, 996, 1014, 1079, 1209, 1328, 1352, 1488, 1612, 1992, 2028, 2158, 2418, 2573, 2704, 3224, 3237, 3984, 4056, 4316, 4836, 5146, 5239, 6448, 6474, 7719, 8112, 8632, 9672, 10292, 10478, 12948, 14027, 15438, 15717, 17264, 19344, 20584, 20956, 25896, 28054, 30876, 31434, 33449, 41168, 41912, 42081, 51792, 56108, 61752, 62868, 66898, 83824, 84162, 100347, 112216, 123504, 125736, 133796, 168324, 200694, 224432, 251472, 267592, 336648, 401388, 434837, 535184, 673296, 802776, 869674, 1304511, 1605552, 1739348, 2609022, 3478696, 5218044, 6957392, 10436088, 20872176]

約数ペア:

[(1, 20872176), (2, 10436088), (3, 6957392), (4, 5218044), (6, 3478696), (8, 2609022), (12, 1739348), (13, 1605552), (16, 1304511), (24, 869674), (26, 802776), (31, 673296), (39, 535184), (48, 434837), (52, 401388), (62, 336648), (78, 267592), (83, 251472), (93, 224432), (104, 200694), (124, 168324), (156, 133796), (166, 125736), (169, 123504), (186, 112216), (208, 100347), (248, 84162), (249, 83824), (312, 66898), (332, 62868), (338, 61752), (372, 56108), (403, 51792), (496, 42081), (498, 41912), (507, 41168), (624, 33449), (664, 31434), (676, 30876), (744, 28054), (806, 25896), (996, 20956), (1014, 20584), (1079, 19344), (1209, 17264), (1328, 15717), (1352, 15438), (1488, 14027), (1612, 12948), (1992, 10478), (2028, 10292), (2158, 9672), (2418, 8632), (2573, 8112), (2704, 7719), (3224, 6474), (3237, 6448), (3984, 5239), (4056, 5146), (4316, 4836)]