16987140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4967}}^1$

素因数の和:5001

約数の個数: 72

約数和(自身を含む): 54250560

約数和(自身を除く): 37263420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 4967, 9934, 14901, 19868, 24835, 29802, 44703, 49670, 59604, 74505, 89406, 94373, 99340, 149010, 178812, 188746, 223515, 283119, 298020, 377492, 447030, 471865, 566238, 849357, 894060, 943730, 1132476, 1415595, 1698714, 1887460, 2831190, 3397428, 4246785, 5662380, 8493570, 16987140]

約数ペア:

[(1, 16987140), (2, 8493570), (3, 5662380), (4, 4246785), (5, 3397428), (6, 2831190), (9, 1887460), (10, 1698714), (12, 1415595), (15, 1132476), (18, 943730), (19, 894060), (20, 849357), (30, 566238), (36, 471865), (38, 447030), (45, 377492), (57, 298020), (60, 283119), (76, 223515), (90, 188746), (95, 178812), (114, 149010), (171, 99340), (180, 94373), (190, 89406), (228, 74505), (285, 59604), (342, 49670), (380, 44703), (570, 29802), (684, 24835), (855, 19868), (1140, 14901), (1710, 9934), (3420, 4967)]