81115980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11173}}^1$

素因数の和:11207

約数の個数: 72

約数和(自身を含む): 249671856

約数和(自身を除く): 168555876

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 3630, 7260, 11173, 22346, 33519, 44692, 55865, 67038, 111730, 122903, 134076, 167595, 223460, 245806, 335190, 368709, 491612, 614515, 670380, 737418, 1229030, 1351933, 1474836, 1843545, 2458060, 2703866, 3687090, 4055799, 5407732, 6759665, 7374180, 8111598, 13519330, 16223196, 20278995, 27038660, 40557990, 81115980]

約数ペア:

[(1, 81115980), (2, 40557990), (3, 27038660), (4, 20278995), (5, 16223196), (6, 13519330), (10, 8111598), (11, 7374180), (12, 6759665), (15, 5407732), (20, 4055799), (22, 3687090), (30, 2703866), (33, 2458060), (44, 1843545), (55, 1474836), (60, 1351933), (66, 1229030), (110, 737418), (121, 670380), (132, 614515), (165, 491612), (220, 368709), (242, 335190), (330, 245806), (363, 223460), (484, 167595), (605, 134076), (660, 122903), (726, 111730), (1210, 67038), (1452, 55865), (1815, 44692), (2420, 33519), (3630, 22346), (7260, 11173)]