121705720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2011}}^1$

素因数の和:2128

約数の個数: 64

約数和(自身を含む): 293349600

約数和(自身を除く): 171643880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 170, 178, 340, 356, 445, 680, 712, 890, 1513, 1780, 2011, 3026, 3560, 4022, 6052, 7565, 8044, 10055, 12104, 15130, 16088, 20110, 30260, 34187, 40220, 60520, 68374, 80440, 136748, 170935, 178979, 273496, 341870, 357958, 683740, 715916, 894895, 1367480, 1431832, 1789790, 3042643, 3579580, 6085286, 7159160, 12170572, 15213215, 24341144, 30426430, 60852860, 121705720]

約数ペア:

[(1, 121705720), (2, 60852860), (4, 30426430), (5, 24341144), (8, 15213215), (10, 12170572), (17, 7159160), (20, 6085286), (34, 3579580), (40, 3042643), (68, 1789790), (85, 1431832), (89, 1367480), (136, 894895), (170, 715916), (178, 683740), (340, 357958), (356, 341870), (445, 273496), (680, 178979), (712, 170935), (890, 136748), (1513, 80440), (1780, 68374), (2011, 60520), (3026, 40220), (3560, 34187), (4022, 30260), (6052, 20110), (7565, 16088), (8044, 15130), (10055, 12104)]