28911720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1223}}^1$

素因数の和:1434

約数の個数: 64

約数和(自身を含む): 87246720

約数和(自身を除く): 58335000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 197, 394, 591, 788, 985, 1182, 1223, 1576, 1970, 2364, 2446, 2955, 3669, 3940, 4728, 4892, 5910, 6115, 7338, 7880, 9784, 11820, 12230, 14676, 18345, 23640, 24460, 29352, 36690, 48920, 73380, 146760, 240931, 481862, 722793, 963724, 1204655, 1445586, 1927448, 2409310, 2891172, 3613965, 4818620, 5782344, 7227930, 9637240, 14455860, 28911720]

約数ペア:

[(1, 28911720), (2, 14455860), (3, 9637240), (4, 7227930), (5, 5782344), (6, 4818620), (8, 3613965), (10, 2891172), (12, 2409310), (15, 1927448), (20, 1445586), (24, 1204655), (30, 963724), (40, 722793), (60, 481862), (120, 240931), (197, 146760), (394, 73380), (591, 48920), (788, 36690), (985, 29352), (1182, 24460), (1223, 23640), (1576, 18345), (1970, 14676), (2364, 12230), (2446, 11820), (2955, 9784), (3669, 7880), (3940, 7338), (4728, 6115), (4892, 5910)]