280101420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{81901}}^1$

素因数の和:81935

約数の個数: 72

約数和(自身を含む): 894369840

約数和(自身を除く): 614268420

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, 81901, 163802, 245703, 327604, 409505, 491406, 737109, 819010, 982812, 1228515, 1474218, 1556119, 1638020, 2457030, 2948436, 3112238, 3685545, 4668357, 4914060, 6224476, 7371090, 7780595, 9336714, 14005071, 14742180, 15561190, 18673428, 23341785, 28010142, 31122380, 46683570, 56020284, 70025355, 93367140, 140050710, 280101420]

約数ペア:

[(1, 280101420), (2, 140050710), (3, 93367140), (4, 70025355), (5, 56020284), (6, 46683570), (9, 31122380), (10, 28010142), (12, 23341785), (15, 18673428), (18, 15561190), (19, 14742180), (20, 14005071), (30, 9336714), (36, 7780595), (38, 7371090), (45, 6224476), (57, 4914060), (60, 4668357), (76, 3685545), (90, 3112238), (95, 2948436), (114, 2457030), (171, 1638020), (180, 1556119), (190, 1474218), (228, 1228515), (285, 982812), (342, 819010), (380, 737109), (570, 491406), (684, 409505), (855, 327604), (1140, 245703), (1710, 163802), (3420, 81901)]