28387450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1$

素因数の和:416

約数の個数: 96

約数和(自身を含む): 68995584

約数和(自身を除く): 40608134

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 25, 26, 34, 35, 50, 65, 70, 85, 91, 119, 130, 170, 175, 182, 221, 238, 325, 350, 367, 425, 442, 455, 595, 650, 734, 850, 910, 1105, 1190, 1547, 1835, 2210, 2275, 2569, 2975, 3094, 3670, 4550, 4771, 5138, 5525, 5950, 6239, 7735, 9175, 9542, 11050, 12478, 12845, 15470, 18350, 23855, 25690, 31195, 33397, 38675, 43673, 47710, 62390, 64225, 66794, 77350, 81107, 87346, 119275, 128450, 155975, 162214, 166985, 218365, 238550, 311950, 333970, 405535, 436730, 567749, 811070, 834925, 1091825, 1135498, 1669850, 2027675, 2183650, 2838745, 4055350, 5677490, 14193725, 28387450]

約数ペア:

[(1, 28387450), (2, 14193725), (5, 5677490), (7, 4055350), (10, 2838745), (13, 2183650), (14, 2027675), (17, 1669850), (25, 1135498), (26, 1091825), (34, 834925), (35, 811070), (50, 567749), (65, 436730), (70, 405535), (85, 333970), (91, 311950), (119, 238550), (130, 218365), (170, 166985), (175, 162214), (182, 155975), (221, 128450), (238, 119275), (325, 87346), (350, 81107), (367, 77350), (425, 66794), (442, 64225), (455, 62390), (595, 47710), (650, 43673), (734, 38675), (850, 33397), (910, 31195), (1105, 25690), (1190, 23855), (1547, 18350), (1835, 15470), (2210, 12845), (2275, 12478), (2569, 11050), (2975, 9542), (3094, 9175), (3670, 7735), (4550, 6239), (4771, 5950), (5138, 5525)]