205004240

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:306

約数の個数: 160

約数和(自身を含む): 576153600

約数和(自身を除く): 371149360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 241, 245, 248, 280, 310, 343, 392, 434, 482, 490, 496, 560, 620, 686, 784, 868, 964, 980, 1085, 1205, 1240, 1372, 1519, 1687, 1715, 1736, 1928, 1960, 2170, 2410, 2480, 2744, 3038, 3374, 3430, 3472, 3856, 3920, 4340, 4820, 5488, 6076, 6748, 6860, 7471, 7595, 8435, 8680, 9640, 10633, 11809, 12152, 13496, 13720, 14942, 15190, 16870, 17360, 19280, 21266, 23618, 24304, 26992, 27440, 29884, 30380, 33740, 37355, 42532, 47236, 52297, 53165, 59045, 59768, 60760, 67480, 74710, 82663, 85064, 94472, 104594, 106330, 118090, 119536, 121520, 134960, 149420, 165326, 170128, 188944, 209188, 212660, 236180, 261485, 298840, 330652, 366079, 413315, 418376, 425320, 472360, 522970, 597680, 661304, 732158, 826630, 836752, 850640, 944720, 1045940, 1322608, 1464316, 1653260, 1830395, 2091880, 2562553, 2928632, 3306520, 3660790, 4183760, 5125106, 5857264, 6613040, 7321580, 10250212, 12812765, 14643160, 20500424, 25625530, 29286320, 41000848, 51251060, 102502120, 205004240]

約数ペア:

[(1, 205004240), (2, 102502120), (4, 51251060), (5, 41000848), (7, 29286320), (8, 25625530), (10, 20500424), (14, 14643160), (16, 12812765), (20, 10250212), (28, 7321580), (31, 6613040), (35, 5857264), (40, 5125106), (49, 4183760), (56, 3660790), (62, 3306520), (70, 2928632), (80, 2562553), (98, 2091880), (112, 1830395), (124, 1653260), (140, 1464316), (155, 1322608), (196, 1045940), (217, 944720), (241, 850640), (245, 836752), (248, 826630), (280, 732158), (310, 661304), (343, 597680), (392, 522970), (434, 472360), (482, 425320), (490, 418376), (496, 413315), (560, 366079), (620, 330652), (686, 298840), (784, 261485), (868, 236180), (964, 212660), (980, 209188), (1085, 188944), (1205, 170128), (1240, 165326), (1372, 149420), (1519, 134960), (1687, 121520), (1715, 119536), (1736, 118090), (1928, 106330), (1960, 104594), (2170, 94472), (2410, 85064), (2480, 82663), (2744, 74710), (3038, 67480), (3374, 60760), (3430, 59768), (3472, 59045), (3856, 53165), (3920, 52297), (4340, 47236), (4820, 42532), (5488, 37355), (6076, 33740), (6748, 30380), (6860, 29884), (7471, 27440), (7595, 26992), (8435, 24304), (8680, 23618), (9640, 21266), (10633, 19280), (11809, 17360), (12152, 16870), (13496, 15190), (13720, 14942)]