18259760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:366

約数の個数: 80

約数和(自身を含む): 45934560

約数和(自身を除く): 27674800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 293, 304, 328, 380, 410, 586, 656, 760, 779, 820, 1172, 1465, 1520, 1558, 1640, 2344, 2930, 3116, 3280, 3895, 4688, 5567, 5860, 6232, 7790, 11134, 11720, 12013, 12464, 15580, 22268, 23440, 24026, 27835, 31160, 44536, 48052, 55670, 60065, 62320, 89072, 96104, 111340, 120130, 192208, 222680, 228247, 240260, 445360, 456494, 480520, 912988, 961040, 1141235, 1825976, 2282470, 3651952, 4564940, 9129880, 18259760]

約数ペア:

[(1, 18259760), (2, 9129880), (4, 4564940), (5, 3651952), (8, 2282470), (10, 1825976), (16, 1141235), (19, 961040), (20, 912988), (38, 480520), (40, 456494), (41, 445360), (76, 240260), (80, 228247), (82, 222680), (95, 192208), (152, 120130), (164, 111340), (190, 96104), (205, 89072), (293, 62320), (304, 60065), (328, 55670), (380, 48052), (410, 44536), (586, 31160), (656, 27835), (760, 24026), (779, 23440), (820, 22268), (1172, 15580), (1465, 12464), (1520, 12013), (1558, 11720), (1640, 11134), (2344, 7790), (2930, 6232), (3116, 5860), (3280, 5567), (3895, 4688)]