221728920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{5387}}^1$

素因数の和:5422

約数の個数: 128

約数和(自身を含む): 775872000

約数和(自身を除く): 554143080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 490, 588, 686, 735, 840, 980, 1029, 1176, 1372, 1470, 1715, 1960, 2058, 2744, 2940, 3430, 4116, 5145, 5387, 5880, 6860, 8232, 10290, 10774, 13720, 16161, 20580, 21548, 26935, 32322, 37709, 41160, 43096, 53870, 64644, 75418, 80805, 107740, 113127, 129288, 150836, 161610, 188545, 215480, 226254, 263963, 301672, 323220, 377090, 452508, 527926, 565635, 646440, 754180, 791889, 905016, 1055852, 1131270, 1319815, 1508360, 1583778, 1847741, 2111704, 2262540, 2639630, 3167556, 3695482, 3959445, 4525080, 5279260, 5543223, 6335112, 7390964, 7918890, 9238705, 10558520, 11086446, 14781928, 15837780, 18477410, 22172892, 27716115, 31675560, 36954820, 44345784, 55432230, 73909640, 110864460, 221728920]

約数ペア:

[(1, 221728920), (2, 110864460), (3, 73909640), (4, 55432230), (5, 44345784), (6, 36954820), (7, 31675560), (8, 27716115), (10, 22172892), (12, 18477410), (14, 15837780), (15, 14781928), (20, 11086446), (21, 10558520), (24, 9238705), (28, 7918890), (30, 7390964), (35, 6335112), (40, 5543223), (42, 5279260), (49, 4525080), (56, 3959445), (60, 3695482), (70, 3167556), (84, 2639630), (98, 2262540), (105, 2111704), (120, 1847741), (140, 1583778), (147, 1508360), (168, 1319815), (196, 1131270), (210, 1055852), (245, 905016), (280, 791889), (294, 754180), (343, 646440), (392, 565635), (420, 527926), (490, 452508), (588, 377090), (686, 323220), (735, 301672), (840, 263963), (980, 226254), (1029, 215480), (1176, 188545), (1372, 161610), (1470, 150836), (1715, 129288), (1960, 113127), (2058, 107740), (2744, 80805), (2940, 75418), (3430, 64644), (4116, 53870), (5145, 43096), (5387, 41160), (5880, 37709), (6860, 32322), (8232, 26935), (10290, 21548), (10774, 20580), (13720, 16161)]