278360720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:873

約数の個数: 160

約数和(自身を含む): 781021440

約数和(自身を除く): 502660720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 23, 34, 40, 44, 46, 55, 68, 80, 85, 88, 92, 110, 115, 136, 170, 176, 184, 187, 220, 230, 253, 272, 340, 368, 374, 391, 440, 460, 506, 680, 748, 782, 809, 880, 920, 935, 1012, 1265, 1360, 1496, 1564, 1618, 1840, 1870, 1955, 2024, 2530, 2992, 3128, 3236, 3740, 3910, 4045, 4048, 4301, 5060, 6256, 6472, 7480, 7820, 8090, 8602, 8899, 10120, 12944, 13753, 14960, 15640, 16180, 17204, 17798, 18607, 20240, 21505, 27506, 31280, 32360, 34408, 35596, 37214, 43010, 44495, 55012, 64720, 68765, 68816, 71192, 74428, 86020, 88990, 93035, 110024, 137530, 142384, 148856, 151283, 172040, 177980, 186070, 204677, 220048, 275060, 297712, 302566, 316319, 344080, 355960, 372140, 409354, 550120, 605132, 632638, 711920, 744280, 756415, 818708, 1023385, 1100240, 1210264, 1265276, 1488560, 1512830, 1581595, 1637416, 2046770, 2420528, 2530552, 3025660, 3163190, 3274832, 3479509, 4093540, 5061104, 6051320, 6326380, 6959018, 8187080, 12102640, 12652760, 13918036, 16374160, 17397545, 25305520, 27836072, 34795090, 55672144, 69590180, 139180360, 278360720]

約数ペア:

[(1, 278360720), (2, 139180360), (4, 69590180), (5, 55672144), (8, 34795090), (10, 27836072), (11, 25305520), (16, 17397545), (17, 16374160), (20, 13918036), (22, 12652760), (23, 12102640), (34, 8187080), (40, 6959018), (44, 6326380), (46, 6051320), (55, 5061104), (68, 4093540), (80, 3479509), (85, 3274832), (88, 3163190), (92, 3025660), (110, 2530552), (115, 2420528), (136, 2046770), (170, 1637416), (176, 1581595), (184, 1512830), (187, 1488560), (220, 1265276), (230, 1210264), (253, 1100240), (272, 1023385), (340, 818708), (368, 756415), (374, 744280), (391, 711920), (440, 632638), (460, 605132), (506, 550120), (680, 409354), (748, 372140), (782, 355960), (809, 344080), (880, 316319), (920, 302566), (935, 297712), (1012, 275060), (1265, 220048), (1360, 204677), (1496, 186070), (1564, 177980), (1618, 172040), (1840, 151283), (1870, 148856), (1955, 142384), (2024, 137530), (2530, 110024), (2992, 93035), (3128, 88990), (3236, 86020), (3740, 74428), (3910, 71192), (4045, 68816), (4048, 68765), (4301, 64720), (5060, 55012), (6256, 44495), (6472, 43010), (7480, 37214), (7820, 35596), (8090, 34408), (8602, 32360), (8899, 31280), (10120, 27506), (12944, 21505), (13753, 20240), (14960, 18607), (15640, 17798), (16180, 17204)]