139779440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1301}}^1$

素因数の和:1410

約数の個数: 80

約数和(自身を含む): 348727680

約数和(自身を除く): 208948240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 79, 80, 85, 136, 158, 170, 272, 316, 340, 395, 632, 680, 790, 1264, 1301, 1343, 1360, 1580, 2602, 2686, 3160, 5204, 5372, 6320, 6505, 6715, 10408, 10744, 13010, 13430, 20816, 21488, 22117, 26020, 26860, 44234, 52040, 53720, 88468, 102779, 104080, 107440, 110585, 176936, 205558, 221170, 353872, 411116, 442340, 513895, 822232, 884680, 1027790, 1644464, 1747243, 1769360, 2055580, 3494486, 4111160, 6988972, 8222320, 8736215, 13977944, 17472430, 27955888, 34944860, 69889720, 139779440]

約数ペア:

[(1, 139779440), (2, 69889720), (4, 34944860), (5, 27955888), (8, 17472430), (10, 13977944), (16, 8736215), (17, 8222320), (20, 6988972), (34, 4111160), (40, 3494486), (68, 2055580), (79, 1769360), (80, 1747243), (85, 1644464), (136, 1027790), (158, 884680), (170, 822232), (272, 513895), (316, 442340), (340, 411116), (395, 353872), (632, 221170), (680, 205558), (790, 176936), (1264, 110585), (1301, 107440), (1343, 104080), (1360, 102779), (1580, 88468), (2602, 53720), (2686, 52040), (3160, 44234), (5204, 26860), (5372, 26020), (6320, 22117), (6505, 21488), (6715, 20816), (10408, 13430), (10744, 13010)]