19851720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23633}}^1$

素因数の和:23654

約数の個数: 64

約数和(自身を含む): 68065920

約数和(自身を除く): 48214200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23633, 47266, 70899, 94532, 118165, 141798, 165431, 189064, 236330, 283596, 330862, 354495, 472660, 496293, 567192, 661724, 708990, 827155, 945320, 992586, 1323448, 1417980, 1654310, 1985172, 2481465, 2835960, 3308620, 3970344, 4962930, 6617240, 9925860, 19851720]

約数ペア:

[(1, 19851720), (2, 9925860), (3, 6617240), (4, 4962930), (5, 3970344), (6, 3308620), (7, 2835960), (8, 2481465), (10, 1985172), (12, 1654310), (14, 1417980), (15, 1323448), (20, 992586), (21, 945320), (24, 827155), (28, 708990), (30, 661724), (35, 567192), (40, 496293), (42, 472660), (56, 354495), (60, 330862), (70, 283596), (84, 236330), (105, 189064), (120, 165431), (140, 141798), (168, 118165), (210, 94532), (280, 70899), (420, 47266), (840, 23633)]