13320520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1031}}^1$

素因数の和:1078

約数の個数: 64

約数和(自身を含む): 33436800

約数和(自身を除く): 20116280

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1031, 1292, 1615, 2062, 2584, 3230, 4124, 5155, 6460, 8248, 10310, 12920, 17527, 19589, 20620, 35054, 39178, 41240, 70108, 78356, 87635, 97945, 140216, 156712, 175270, 195890, 333013, 350540, 391780, 666026, 701080, 783560, 1332052, 1665065, 2664104, 3330130, 6660260, 13320520]

約数ペア:

[(1, 13320520), (2, 6660260), (4, 3330130), (5, 2664104), (8, 1665065), (10, 1332052), (17, 783560), (19, 701080), (20, 666026), (34, 391780), (38, 350540), (40, 333013), (68, 195890), (76, 175270), (85, 156712), (95, 140216), (136, 97945), (152, 87635), (170, 78356), (190, 70108), (323, 41240), (340, 39178), (380, 35054), (646, 20620), (680, 19589), (760, 17527), (1031, 12920), (1292, 10310), (1615, 8248), (2062, 6460), (2584, 5155), (3230, 4124)]