18836090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2957}}^1$

素因数の和:2991

約数の個数: 48

約数和(自身を含む): 42488712

約数和(自身を除く): 23652622

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 2957, 3185, 5914, 6370, 14785, 20699, 29570, 38441, 41398, 76882, 103495, 144893, 192205, 206990, 269087, 289786, 384410, 538174, 724465, 1345435, 1448930, 1883609, 2690870, 3767218, 9418045, 18836090]

約数ペア:

[(1, 18836090), (2, 9418045), (5, 3767218), (7, 2690870), (10, 1883609), (13, 1448930), (14, 1345435), (26, 724465), (35, 538174), (49, 384410), (65, 289786), (70, 269087), (91, 206990), (98, 192205), (130, 144893), (182, 103495), (245, 76882), (455, 41398), (490, 38441), (637, 29570), (910, 20699), (1274, 14785), (2957, 6370), (3185, 5914)]