210945980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11329}}^1$

素因数の和:11371

約数の個数: 72

約数和(自身を含む): 542480400

約数和(自身を除く): 331534420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4655, 9310, 11329, 18620, 22658, 45316, 56645, 79303, 113290, 158606, 215251, 226580, 317212, 396515, 430502, 555121, 793030, 861004, 1076255, 1110242, 1506757, 1586060, 2152510, 2220484, 2775605, 3013514, 4305020, 5551210, 6027028, 7533785, 10547299, 11102420, 15067570, 21094598, 30135140, 42189196, 52736495, 105472990, 210945980]

約数ペア:

[(1, 210945980), (2, 105472990), (4, 52736495), (5, 42189196), (7, 30135140), (10, 21094598), (14, 15067570), (19, 11102420), (20, 10547299), (28, 7533785), (35, 6027028), (38, 5551210), (49, 4305020), (70, 3013514), (76, 2775605), (95, 2220484), (98, 2152510), (133, 1586060), (140, 1506757), (190, 1110242), (196, 1076255), (245, 861004), (266, 793030), (380, 555121), (490, 430502), (532, 396515), (665, 317212), (931, 226580), (980, 215251), (1330, 158606), (1862, 113290), (2660, 79303), (3724, 56645), (4655, 45316), (9310, 22658), (11329, 18620)]