28205320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4931}}^1$

素因数の和:4966

約数の個数: 64

約数和(自身を含む): 74571840

約数和(自身を除く): 46366520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 4931, 5720, 9862, 19724, 24655, 39448, 49310, 54241, 64103, 98620, 108482, 128206, 197240, 216964, 256412, 271205, 320515, 433928, 512824, 542410, 641030, 705133, 1084820, 1282060, 1410266, 2169640, 2564120, 2820532, 3525665, 5641064, 7051330, 14102660, 28205320]

約数ペア:

[(1, 28205320), (2, 14102660), (4, 7051330), (5, 5641064), (8, 3525665), (10, 2820532), (11, 2564120), (13, 2169640), (20, 1410266), (22, 1282060), (26, 1084820), (40, 705133), (44, 641030), (52, 542410), (55, 512824), (65, 433928), (88, 320515), (104, 271205), (110, 256412), (130, 216964), (143, 197240), (220, 128206), (260, 108482), (286, 98620), (440, 64103), (520, 54241), (572, 49310), (715, 39448), (1144, 24655), (1430, 19724), (2860, 9862), (4931, 5720)]