80220280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{887}}^1$

素因数の和:941

約数の個数: 128

約数和(自身を含む): 230169600

約数和(自身を除く): 149949320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 476, 532, 595, 646, 665, 680, 760, 887, 952, 1064, 1190, 1292, 1330, 1615, 1774, 2261, 2380, 2584, 2660, 3230, 3548, 4435, 4522, 4760, 5320, 6209, 6460, 7096, 8870, 9044, 11305, 12418, 12920, 15079, 16853, 17740, 18088, 22610, 24836, 30158, 31045, 33706, 35480, 45220, 49672, 60316, 62090, 67412, 75395, 84265, 90440, 105553, 117971, 120632, 124180, 134824, 150790, 168530, 211106, 235942, 248360, 286501, 301580, 337060, 422212, 471884, 527765, 573002, 589855, 603160, 674120, 844424, 943768, 1055530, 1146004, 1179710, 1432505, 2005507, 2111060, 2292008, 2359420, 2865010, 4011014, 4222120, 4718840, 5730020, 8022028, 10027535, 11460040, 16044056, 20055070, 40110140, 80220280]

約数ペア:

[(1, 80220280), (2, 40110140), (4, 20055070), (5, 16044056), (7, 11460040), (8, 10027535), (10, 8022028), (14, 5730020), (17, 4718840), (19, 4222120), (20, 4011014), (28, 2865010), (34, 2359420), (35, 2292008), (38, 2111060), (40, 2005507), (56, 1432505), (68, 1179710), (70, 1146004), (76, 1055530), (85, 943768), (95, 844424), (119, 674120), (133, 603160), (136, 589855), (140, 573002), (152, 527765), (170, 471884), (190, 422212), (238, 337060), (266, 301580), (280, 286501), (323, 248360), (340, 235942), (380, 211106), (476, 168530), (532, 150790), (595, 134824), (646, 124180), (665, 120632), (680, 117971), (760, 105553), (887, 90440), (952, 84265), (1064, 75395), (1190, 67412), (1292, 62090), (1330, 60316), (1615, 49672), (1774, 45220), (2261, 35480), (2380, 33706), (2584, 31045), (2660, 30158), (3230, 24836), (3548, 22610), (4435, 18088), (4522, 17740), (4760, 16853), (5320, 15079), (6209, 12920), (6460, 12418), (7096, 11305), (8870, 9044)]