18760520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{587}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 26962360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 587, 680, 799, 940, 1174, 1598, 1880, 2348, 2935, 3196, 3995, 4696, 5870, 6392, 7990, 9979, 11740, 15980, 19958, 23480, 27589, 31960, 39916, 49895, 55178, 79832, 99790, 110356, 137945, 199580, 220712, 275890, 399160, 469013, 551780, 938026, 1103560, 1876052, 2345065, 3752104, 4690130, 9380260, 18760520]

約数ペア:

[(1, 18760520), (2, 9380260), (4, 4690130), (5, 3752104), (8, 2345065), (10, 1876052), (17, 1103560), (20, 938026), (34, 551780), (40, 469013), (47, 399160), (68, 275890), (85, 220712), (94, 199580), (136, 137945), (170, 110356), (188, 99790), (235, 79832), (340, 55178), (376, 49895), (470, 39916), (587, 31960), (680, 27589), (799, 23480), (940, 19958), (1174, 15980), (1598, 11740), (1880, 9979), (2348, 7990), (2935, 6392), (3196, 5870), (3995, 4696)]