123807780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{8287}}^1$

素因数の和:8385

約数の個数: 72

約数和(自身を含む): 380120832

約数和(自身を除く): 256313052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1494, 1660, 2490, 2988, 3735, 4980, 7470, 8287, 14940, 16574, 24861, 33148, 41435, 49722, 74583, 82870, 99444, 124305, 149166, 165740, 248610, 298332, 372915, 497220, 687821, 745830, 1375642, 1491660, 2063463, 2751284, 3439105, 4126926, 6190389, 6878210, 8253852, 10317315, 12380778, 13756420, 20634630, 24761556, 30951945, 41269260, 61903890, 123807780]

約数ペア:

[(1, 123807780), (2, 61903890), (3, 41269260), (4, 30951945), (5, 24761556), (6, 20634630), (9, 13756420), (10, 12380778), (12, 10317315), (15, 8253852), (18, 6878210), (20, 6190389), (30, 4126926), (36, 3439105), (45, 2751284), (60, 2063463), (83, 1491660), (90, 1375642), (166, 745830), (180, 687821), (249, 497220), (332, 372915), (415, 298332), (498, 248610), (747, 165740), (830, 149166), (996, 124305), (1245, 99444), (1494, 82870), (1660, 74583), (2490, 49722), (2988, 41435), (3735, 33148), (4980, 24861), (7470, 16574), (8287, 14940)]