221193840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{2687}}^1$

素因数の和:2724

約数の個数: 160

約数和(自身を含む): 799948800

約数和(自身を除く): 578754960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 343, 392, 420, 490, 560, 588, 686, 735, 784, 840, 980, 1029, 1176, 1372, 1470, 1680, 1715, 1960, 2058, 2352, 2687, 2744, 2940, 3430, 3920, 4116, 5145, 5374, 5488, 5880, 6860, 8061, 8232, 10290, 10748, 11760, 13435, 13720, 16122, 16464, 18809, 20580, 21496, 26870, 27440, 32244, 37618, 40305, 41160, 42992, 53740, 56427, 64488, 75236, 80610, 82320, 94045, 107480, 112854, 128976, 131663, 150472, 161220, 188090, 214960, 225708, 263326, 282135, 300944, 322440, 376180, 394989, 451416, 526652, 564270, 644880, 658315, 752360, 789978, 902832, 921641, 1053304, 1128540, 1316630, 1504720, 1579956, 1843282, 1974945, 2106608, 2257080, 2633260, 2764923, 3159912, 3686564, 3949890, 4514160, 4608205, 5266520, 5529846, 6319824, 7373128, 7899780, 9216410, 10533040, 11059692, 13824615, 14746256, 15799560, 18432820, 22119384, 27649230, 31599120, 36865640, 44238768, 55298460, 73731280, 110596920, 221193840]

約数ペア:

[(1, 221193840), (2, 110596920), (3, 73731280), (4, 55298460), (5, 44238768), (6, 36865640), (7, 31599120), (8, 27649230), (10, 22119384), (12, 18432820), (14, 15799560), (15, 14746256), (16, 13824615), (20, 11059692), (21, 10533040), (24, 9216410), (28, 7899780), (30, 7373128), (35, 6319824), (40, 5529846), (42, 5266520), (48, 4608205), (49, 4514160), (56, 3949890), (60, 3686564), (70, 3159912), (80, 2764923), (84, 2633260), (98, 2257080), (105, 2106608), (112, 1974945), (120, 1843282), (140, 1579956), (147, 1504720), (168, 1316630), (196, 1128540), (210, 1053304), (240, 921641), (245, 902832), (280, 789978), (294, 752360), (336, 658315), (343, 644880), (392, 564270), (420, 526652), (490, 451416), (560, 394989), (588, 376180), (686, 322440), (735, 300944), (784, 282135), (840, 263326), (980, 225708), (1029, 214960), (1176, 188090), (1372, 161220), (1470, 150472), (1680, 131663), (1715, 128976), (1960, 112854), (2058, 107480), (2352, 94045), (2687, 82320), (2744, 80610), (2940, 75236), (3430, 64488), (3920, 56427), (4116, 53740), (5145, 42992), (5374, 41160), (5488, 40305), (5880, 37618), (6860, 32244), (8061, 27440), (8232, 26870), (10290, 21496), (10748, 20580), (11760, 18809), (13435, 16464), (13720, 16122)]