257715220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{877}}^1\times {\mathrm{2099}}^1$

素因数の和:2992

約数の個数: 48

約数和(自身を含む): 619516800

約数和(自身を除く): 361801580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 877, 1754, 2099, 3508, 4198, 4385, 6139, 8396, 8770, 10495, 12278, 14693, 17540, 20990, 24556, 29386, 30695, 41980, 58772, 61390, 73465, 122780, 146930, 293860, 1840823, 3681646, 7363292, 9204115, 12885761, 18408230, 25771522, 36816460, 51543044, 64428805, 128857610, 257715220]

約数ペア:

[(1, 257715220), (2, 128857610), (4, 64428805), (5, 51543044), (7, 36816460), (10, 25771522), (14, 18408230), (20, 12885761), (28, 9204115), (35, 7363292), (70, 3681646), (140, 1840823), (877, 293860), (1754, 146930), (2099, 122780), (3508, 73465), (4198, 61390), (4385, 58772), (6139, 41980), (8396, 30695), (8770, 29386), (10495, 24556), (12278, 20990), (14693, 17540)]