216170320

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 515123280

約数和(自身を除く): 298952960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 97, 178, 194, 313, 356, 388, 445, 485, 626, 712, 776, 890, 970, 1252, 1424, 1552, 1565, 1780, 1940, 2504, 3130, 3560, 3880, 5008, 6260, 7120, 7760, 8633, 12520, 17266, 25040, 27857, 30361, 34532, 43165, 55714, 60722, 69064, 86330, 111428, 121444, 138128, 139285, 151805, 172660, 222856, 242888, 278570, 303610, 345320, 445712, 485776, 557140, 607220, 690640, 1114280, 1214440, 2228560, 2428880, 2702129, 5404258, 10808516, 13510645, 21617032, 27021290, 43234064, 54042580, 108085160, 216170320]

約数ペア:

[(1, 216170320), (2, 108085160), (4, 54042580), (5, 43234064), (8, 27021290), (10, 21617032), (16, 13510645), (20, 10808516), (40, 5404258), (80, 2702129), (89, 2428880), (97, 2228560), (178, 1214440), (194, 1114280), (313, 690640), (356, 607220), (388, 557140), (445, 485776), (485, 445712), (626, 345320), (712, 303610), (776, 278570), (890, 242888), (970, 222856), (1252, 172660), (1424, 151805), (1552, 139285), (1565, 138128), (1780, 121444), (1940, 111428), (2504, 86330), (3130, 69064), (3560, 60722), (3880, 55714), (5008, 43165), (6260, 34532), (7120, 30361), (7760, 27857), (8633, 25040), (12520, 17266)]