218563485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{809}}^1$

素因数の和:938

約数の個数: 64

約数和(自身を含む): 418037760

約数和(自身を除く): 199474275

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 83, 93, 105, 155, 217, 249, 415, 465, 581, 651, 809, 1085, 1245, 1743, 2427, 2573, 2905, 3255, 4045, 5663, 7719, 8715, 12135, 12865, 16989, 18011, 25079, 28315, 38595, 54033, 67147, 75237, 84945, 90055, 125395, 175553, 201441, 270165, 335735, 376185, 470029, 526659, 877765, 1007205, 1410087, 2081557, 2350145, 2633295, 6244671, 7050435, 10407785, 14570899, 31223355, 43712697, 72854495, 218563485]

約数ペア:

[(1, 218563485), (3, 72854495), (5, 43712697), (7, 31223355), (15, 14570899), (21, 10407785), (31, 7050435), (35, 6244671), (83, 2633295), (93, 2350145), (105, 2081557), (155, 1410087), (217, 1007205), (249, 877765), (415, 526659), (465, 470029), (581, 376185), (651, 335735), (809, 270165), (1085, 201441), (1245, 175553), (1743, 125395), (2427, 90055), (2573, 84945), (2905, 75237), (3255, 67147), (4045, 54033), (5663, 38595), (7719, 28315), (8715, 25079), (12135, 18011), (12865, 16989)]