2100640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1$

素因数の和:725

約数の個数: 48

約数和(自身を含む): 5231520

約数和(自身を除く): 3130880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 691, 760, 1382, 1520, 2764, 3040, 3455, 5528, 6910, 11056, 13129, 13820, 22112, 26258, 27640, 52516, 55280, 65645, 105032, 110560, 131290, 210064, 262580, 420128, 525160, 1050320, 2100640]

約数ペア:

[(1, 2100640), (2, 1050320), (4, 525160), (5, 420128), (8, 262580), (10, 210064), (16, 131290), (19, 110560), (20, 105032), (32, 65645), (38, 55280), (40, 52516), (76, 27640), (80, 26258), (95, 22112), (152, 13820), (160, 13129), (190, 11056), (304, 6910), (380, 5528), (608, 3455), (691, 3040), (760, 2764), (1382, 1520)]