18888720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{373}}^1$

素因数の和:600

約数の個数: 80

約数和(自身を含む): 58990272

約数和(自身を除く): 40101552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 211, 240, 373, 422, 633, 746, 844, 1055, 1119, 1266, 1492, 1688, 1865, 2110, 2238, 2532, 2984, 3165, 3376, 3730, 4220, 4476, 5064, 5595, 5968, 6330, 7460, 8440, 8952, 10128, 11190, 12660, 14920, 16880, 17904, 22380, 25320, 29840, 44760, 50640, 78703, 89520, 157406, 236109, 314812, 393515, 472218, 629624, 787030, 944436, 1180545, 1259248, 1574060, 1888872, 2361090, 3148120, 3777744, 4722180, 6296240, 9444360, 18888720]

約数ペア:

[(1, 18888720), (2, 9444360), (3, 6296240), (4, 4722180), (5, 3777744), (6, 3148120), (8, 2361090), (10, 1888872), (12, 1574060), (15, 1259248), (16, 1180545), (20, 944436), (24, 787030), (30, 629624), (40, 472218), (48, 393515), (60, 314812), (80, 236109), (120, 157406), (211, 89520), (240, 78703), (373, 50640), (422, 44760), (633, 29840), (746, 25320), (844, 22380), (1055, 17904), (1119, 16880), (1266, 14920), (1492, 12660), (1688, 11190), (1865, 10128), (2110, 8952), (2238, 8440), (2532, 7460), (2984, 6330), (3165, 5968), (3376, 5595), (3730, 5064), (4220, 4476)]