72616720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{461}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 185613120

約数和(自身を除く): 112996400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 179, 220, 358, 440, 461, 716, 880, 895, 922, 1432, 1790, 1844, 1969, 2305, 2864, 3580, 3688, 3938, 4610, 5071, 7160, 7376, 7876, 9220, 9845, 10142, 14320, 15752, 18440, 19690, 20284, 25355, 31504, 36880, 39380, 40568, 50710, 78760, 81136, 82519, 101420, 157520, 165038, 202840, 330076, 405680, 412595, 660152, 825190, 907709, 1320304, 1650380, 1815418, 3300760, 3630836, 4538545, 6601520, 7261672, 9077090, 14523344, 18154180, 36308360, 72616720]

約数ペア:

[(1, 72616720), (2, 36308360), (4, 18154180), (5, 14523344), (8, 9077090), (10, 7261672), (11, 6601520), (16, 4538545), (20, 3630836), (22, 3300760), (40, 1815418), (44, 1650380), (55, 1320304), (80, 907709), (88, 825190), (110, 660152), (176, 412595), (179, 405680), (220, 330076), (358, 202840), (440, 165038), (461, 157520), (716, 101420), (880, 82519), (895, 81136), (922, 78760), (1432, 50710), (1790, 40568), (1844, 39380), (1969, 36880), (2305, 31504), (2864, 25355), (3580, 20284), (3688, 19690), (3938, 18440), (4610, 15752), (5071, 14320), (7160, 10142), (7376, 9845), (7876, 9220)]