28765870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1051}}^1$

素因数の和:1105

約数の個数: 64

約数和(自身を含む): 65442816

約数和(自身を除く): 36676946

約数列:

[1, 2, 5, 7, 10, 14, 17, 23, 34, 35, 46, 70, 85, 115, 119, 161, 170, 230, 238, 322, 391, 595, 782, 805, 1051, 1190, 1610, 1955, 2102, 2737, 3910, 5255, 5474, 7357, 10510, 13685, 14714, 17867, 24173, 27370, 35734, 36785, 48346, 73570, 89335, 120865, 125069, 169211, 178670, 241730, 250138, 338422, 410941, 625345, 821882, 846055, 1250690, 1692110, 2054705, 2876587, 4109410, 5753174, 14382935, 28765870]

約数ペア:

[(1, 28765870), (2, 14382935), (5, 5753174), (7, 4109410), (10, 2876587), (14, 2054705), (17, 1692110), (23, 1250690), (34, 846055), (35, 821882), (46, 625345), (70, 410941), (85, 338422), (115, 250138), (119, 241730), (161, 178670), (170, 169211), (230, 125069), (238, 120865), (322, 89335), (391, 73570), (595, 48346), (782, 36785), (805, 35734), (1051, 27370), (1190, 24173), (1610, 17867), (1955, 14714), (2102, 13685), (2737, 10510), (3910, 7357), (5255, 5474)]