28397550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{197}}^1$

素因数の和:274

約数の個数: 72

約数和(自身を含む): 73140408

約数和(自身を除く): 44742858

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 197, 310, 394, 465, 591, 775, 930, 961, 985, 1182, 1550, 1922, 1970, 2325, 2883, 2955, 4650, 4805, 4925, 5766, 5910, 6107, 9610, 9850, 12214, 14415, 14775, 18321, 24025, 28830, 29550, 30535, 36642, 48050, 61070, 72075, 91605, 144150, 152675, 183210, 189317, 305350, 378634, 458025, 567951, 916050, 946585, 1135902, 1893170, 2839755, 4732925, 5679510, 9465850, 14198775, 28397550]

約数ペア:

[(1, 28397550), (2, 14198775), (3, 9465850), (5, 5679510), (6, 4732925), (10, 2839755), (15, 1893170), (25, 1135902), (30, 946585), (31, 916050), (50, 567951), (62, 458025), (75, 378634), (93, 305350), (150, 189317), (155, 183210), (186, 152675), (197, 144150), (310, 91605), (394, 72075), (465, 61070), (591, 48050), (775, 36642), (930, 30535), (961, 29550), (985, 28830), (1182, 24025), (1550, 18321), (1922, 14775), (1970, 14415), (2325, 12214), (2883, 9850), (2955, 9610), (4650, 6107), (4805, 5910), (4925, 5766)]