421316840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21193}}^1$

素因数の和:21282

約数の個数: 64

約数和(自身を含む): 1098696960

約数和(自身を除く): 677380120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9940, 19880, 21193, 42386, 84772, 105965, 148351, 169544, 211930, 296702, 423860, 593404, 741755, 847720, 1186808, 1483510, 1504703, 2967020, 3009406, 5934040, 6018812, 7523515, 10532921, 12037624, 15047030, 21065842, 30094060, 42131684, 52664605, 60188120, 84263368, 105329210, 210658420, 421316840]

約数ペア:

[(1, 421316840), (2, 210658420), (4, 105329210), (5, 84263368), (7, 60188120), (8, 52664605), (10, 42131684), (14, 30094060), (20, 21065842), (28, 15047030), (35, 12037624), (40, 10532921), (56, 7523515), (70, 6018812), (71, 5934040), (140, 3009406), (142, 2967020), (280, 1504703), (284, 1483510), (355, 1186808), (497, 847720), (568, 741755), (710, 593404), (994, 423860), (1420, 296702), (1988, 211930), (2485, 169544), (2840, 148351), (3976, 105965), (4970, 84772), (9940, 42386), (19880, 21193)]