205267140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87721}}^1$

素因数の和:87749

約数の個数: 72

約数和(自身を含む): 670546968

約数和(自身を除く): 465279828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 87721, 175442, 263163, 350884, 438605, 526326, 789489, 877210, 1052652, 1140373, 1315815, 1578978, 1754420, 2280746, 2631630, 3157956, 3421119, 3947445, 4561492, 5263260, 5701865, 6842238, 7894890, 10263357, 11403730, 13684476, 15789780, 17105595, 20526714, 22807460, 34211190, 41053428, 51316785, 68422380, 102633570, 205267140]

約数ペア:

[(1, 205267140), (2, 102633570), (3, 68422380), (4, 51316785), (5, 41053428), (6, 34211190), (9, 22807460), (10, 20526714), (12, 17105595), (13, 15789780), (15, 13684476), (18, 11403730), (20, 10263357), (26, 7894890), (30, 6842238), (36, 5701865), (39, 5263260), (45, 4561492), (52, 3947445), (60, 3421119), (65, 3157956), (78, 2631630), (90, 2280746), (117, 1754420), (130, 1578978), (156, 1315815), (180, 1140373), (195, 1052652), (234, 877210), (260, 789489), (390, 526326), (468, 438605), (585, 350884), (780, 263163), (1170, 175442), (2340, 87721)]