420280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:116

約数の個数: 64

約数和(自身を含む): 1152000

約数和(自身を除く): 731720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 79, 95, 133, 140, 152, 158, 190, 266, 280, 316, 380, 395, 532, 553, 632, 665, 760, 790, 1064, 1106, 1330, 1501, 1580, 2212, 2660, 2765, 3002, 3160, 4424, 5320, 5530, 6004, 7505, 10507, 11060, 12008, 15010, 21014, 22120, 30020, 42028, 52535, 60040, 84056, 105070, 210140, 420280]

約数ペア:

[(1, 420280), (2, 210140), (4, 105070), (5, 84056), (7, 60040), (8, 52535), (10, 42028), (14, 30020), (19, 22120), (20, 21014), (28, 15010), (35, 12008), (38, 11060), (40, 10507), (56, 7505), (70, 6004), (76, 5530), (79, 5320), (95, 4424), (133, 3160), (140, 3002), (152, 2765), (158, 2660), (190, 2212), (266, 1580), (280, 1501), (316, 1330), (380, 1106), (395, 1064), (532, 790), (553, 760), (632, 665)]