28766920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1129}}^1$

素因数の和:1167

約数の個数: 96

約数和(自身を含む): 81156600

約数和(自身を除く): 52389680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 1129, 1274, 1820, 1960, 2258, 2548, 3185, 3640, 4516, 5096, 5645, 6370, 7903, 9032, 11290, 12740, 14677, 15806, 22580, 25480, 29354, 31612, 39515, 45160, 55321, 58708, 63224, 73385, 79030, 102739, 110642, 117416, 146770, 158060, 205478, 221284, 276605, 293540, 316120, 410956, 442568, 513695, 553210, 587080, 719173, 821912, 1027390, 1106420, 1438346, 2054780, 2212840, 2876692, 3595865, 4109560, 5753384, 7191730, 14383460, 28766920]

約数ペア:

[(1, 28766920), (2, 14383460), (4, 7191730), (5, 5753384), (7, 4109560), (8, 3595865), (10, 2876692), (13, 2212840), (14, 2054780), (20, 1438346), (26, 1106420), (28, 1027390), (35, 821912), (40, 719173), (49, 587080), (52, 553210), (56, 513695), (65, 442568), (70, 410956), (91, 316120), (98, 293540), (104, 276605), (130, 221284), (140, 205478), (182, 158060), (196, 146770), (245, 117416), (260, 110642), (280, 102739), (364, 79030), (392, 73385), (455, 63224), (490, 58708), (520, 55321), (637, 45160), (728, 39515), (910, 31612), (980, 29354), (1129, 25480), (1274, 22580), (1820, 15806), (1960, 14677), (2258, 12740), (2548, 11290), (3185, 9032), (3640, 7903), (4516, 6370), (5096, 5645)]