28936180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1223}}^1$

素因数の和:1265

約数の個数: 72

約数和(自身を含む): 75261312

約数和(自身を除く): 46325132

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1223, 1690, 1820, 2366, 2446, 3380, 4732, 4892, 5915, 6115, 8561, 11830, 12230, 15899, 17122, 23660, 24460, 31798, 34244, 42805, 63596, 79495, 85610, 111293, 158990, 171220, 206687, 222586, 317980, 413374, 445172, 556465, 826748, 1033435, 1112930, 1446809, 2066870, 2225860, 2893618, 4133740, 5787236, 7234045, 14468090, 28936180]

約数ペア:

[(1, 28936180), (2, 14468090), (4, 7234045), (5, 5787236), (7, 4133740), (10, 2893618), (13, 2225860), (14, 2066870), (20, 1446809), (26, 1112930), (28, 1033435), (35, 826748), (52, 556465), (65, 445172), (70, 413374), (91, 317980), (130, 222586), (140, 206687), (169, 171220), (182, 158990), (260, 111293), (338, 85610), (364, 79495), (455, 63596), (676, 42805), (845, 34244), (910, 31798), (1183, 24460), (1223, 23660), (1690, 17122), (1820, 15899), (2366, 12230), (2446, 11830), (3380, 8561), (4732, 6115), (4892, 5915)]