30891220

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 67495680

約数和(自身を除く): 36604460

約数列:

[1, 2, 4, 5, 10, 20, 47, 59, 94, 118, 188, 235, 236, 295, 470, 557, 590, 940, 1114, 1180, 2228, 2773, 2785, 5546, 5570, 11092, 11140, 13865, 26179, 27730, 32863, 52358, 55460, 65726, 104716, 130895, 131452, 164315, 261790, 328630, 523580, 657260, 1544561, 3089122, 6178244, 7722805, 15445610, 30891220]

約数ペア:

[(1, 30891220), (2, 15445610), (4, 7722805), (5, 6178244), (10, 3089122), (20, 1544561), (47, 657260), (59, 523580), (94, 328630), (118, 261790), (188, 164315), (235, 131452), (236, 130895), (295, 104716), (470, 65726), (557, 55460), (590, 52358), (940, 32863), (1114, 27730), (1180, 26179), (2228, 13865), (2773, 11140), (2785, 11092), (5546, 5570)]