204396640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:118

約数の個数: 216

約数和(自身を含む): 600530112

約数和(自身を除く): 396133472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 32, 35, 40, 49, 56, 58, 62, 70, 80, 98, 112, 116, 124, 140, 145, 155, 160, 196, 203, 217, 224, 232, 245, 248, 280, 290, 310, 392, 406, 434, 464, 490, 496, 560, 580, 620, 784, 812, 841, 868, 899, 928, 980, 992, 1015, 1085, 1120, 1160, 1240, 1421, 1519, 1568, 1624, 1682, 1736, 1798, 1960, 2030, 2170, 2320, 2480, 2842, 3038, 3248, 3364, 3472, 3596, 3920, 4060, 4205, 4340, 4495, 4640, 4960, 5684, 5887, 6076, 6293, 6496, 6728, 6944, 7105, 7192, 7595, 7840, 8120, 8410, 8680, 8990, 11368, 11774, 12152, 12586, 13456, 14210, 14384, 15190, 16240, 16820, 17360, 17980, 22736, 23548, 24304, 25172, 26071, 26912, 28420, 28768, 29435, 30380, 31465, 32480, 33640, 34720, 35960, 41209, 44051, 45472, 47096, 48608, 50344, 52142, 56840, 58870, 60760, 62930, 67280, 71920, 82418, 88102, 94192, 100688, 104284, 113680, 117740, 121520, 125860, 130355, 134560, 143840, 164836, 176204, 182497, 188384, 201376, 206045, 208568, 220255, 227360, 235480, 243040, 251720, 260710, 329672, 352408, 364994, 412090, 417136, 440510, 470960, 503440, 521420, 659344, 704816, 729988, 824180, 834272, 881020, 912485, 941920, 1006880, 1042840, 1277479, 1318688, 1409632, 1459976, 1648360, 1762040, 1824970, 2085680, 2554958, 2919952, 3296720, 3524080, 3649940, 4171360, 5109916, 5839904, 6387395, 6593440, 7048160, 7299880, 10219832, 12774790, 14599760, 20439664, 25549580, 29199520, 40879328, 51099160, 102198320, 204396640]

約数ペア:

[(1, 204396640), (2, 102198320), (4, 51099160), (5, 40879328), (7, 29199520), (8, 25549580), (10, 20439664), (14, 14599760), (16, 12774790), (20, 10219832), (28, 7299880), (29, 7048160), (31, 6593440), (32, 6387395), (35, 5839904), (40, 5109916), (49, 4171360), (56, 3649940), (58, 3524080), (62, 3296720), (70, 2919952), (80, 2554958), (98, 2085680), (112, 1824970), (116, 1762040), (124, 1648360), (140, 1459976), (145, 1409632), (155, 1318688), (160, 1277479), (196, 1042840), (203, 1006880), (217, 941920), (224, 912485), (232, 881020), (245, 834272), (248, 824180), (280, 729988), (290, 704816), (310, 659344), (392, 521420), (406, 503440), (434, 470960), (464, 440510), (490, 417136), (496, 412090), (560, 364994), (580, 352408), (620, 329672), (784, 260710), (812, 251720), (841, 243040), (868, 235480), (899, 227360), (928, 220255), (980, 208568), (992, 206045), (1015, 201376), (1085, 188384), (1120, 182497), (1160, 176204), (1240, 164836), (1421, 143840), (1519, 134560), (1568, 130355), (1624, 125860), (1682, 121520), (1736, 117740), (1798, 113680), (1960, 104284), (2030, 100688), (2170, 94192), (2320, 88102), (2480, 82418), (2842, 71920), (3038, 67280), (3248, 62930), (3364, 60760), (3472, 58870), (3596, 56840), (3920, 52142), (4060, 50344), (4205, 48608), (4340, 47096), (4495, 45472), (4640, 44051), (4960, 41209), (5684, 35960), (5887, 34720), (6076, 33640), (6293, 32480), (6496, 31465), (6728, 30380), (6944, 29435), (7105, 28768), (7192, 28420), (7595, 26912), (7840, 26071), (8120, 25172), (8410, 24304), (8680, 23548), (8990, 22736), (11368, 17980), (11774, 17360), (12152, 16820), (12586, 16240), (13456, 15190), (14210, 14384)]