28265380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9883}}^1$

素因数の和:9916

約数の個数: 48

約数和(自身を含む): 69741504

約数和(自身を除く): 41476124

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 9883, 19766, 39532, 49415, 98830, 108713, 128479, 197660, 217426, 256958, 434852, 513916, 543565, 642395, 1087130, 1284790, 1413269, 2174260, 2569580, 2826538, 5653076, 7066345, 14132690, 28265380]

約数ペア:

[(1, 28265380), (2, 14132690), (4, 7066345), (5, 5653076), (10, 2826538), (11, 2569580), (13, 2174260), (20, 1413269), (22, 1284790), (26, 1087130), (44, 642395), (52, 543565), (55, 513916), (65, 434852), (110, 256958), (130, 217426), (143, 197660), (220, 128479), (260, 108713), (286, 98830), (572, 49415), (715, 39532), (1430, 19766), (2860, 9883)]