72555357

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 122757120

約数和(自身を除く): 50201763

約数列:

[1, 3, 7, 19, 21, 47, 53, 57, 73, 133, 141, 159, 219, 329, 371, 399, 511, 893, 987, 1007, 1113, 1387, 1533, 2491, 2679, 3021, 3431, 3869, 4161, 6251, 7049, 7473, 9709, 10293, 11607, 17437, 18753, 21147, 24017, 27083, 29127, 47329, 52311, 65189, 72051, 73511, 81249, 141987, 181843, 195567, 220533, 331303, 456323, 514577, 545529, 993909, 1272901, 1368969, 1543731, 3455017, 3818703, 10365051, 24185119, 72555357]

約数ペア:

[(1, 72555357), (3, 24185119), (7, 10365051), (19, 3818703), (21, 3455017), (47, 1543731), (53, 1368969), (57, 1272901), (73, 993909), (133, 545529), (141, 514577), (159, 456323), (219, 331303), (329, 220533), (371, 195567), (399, 181843), (511, 141987), (893, 81249), (987, 73511), (1007, 72051), (1113, 65189), (1387, 52311), (1533, 47329), (2491, 29127), (2679, 27083), (3021, 24017), (3431, 21147), (3869, 18753), (4161, 17437), (6251, 11607), (7049, 10293), (7473, 9709)]