211948240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:501

約数の個数: 160

約数和(自身を含む): 602818560

約数和(自身を除く): 390870320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 80, 112, 116, 124, 140, 145, 155, 203, 217, 232, 248, 280, 290, 310, 406, 421, 434, 464, 496, 560, 580, 620, 812, 842, 868, 899, 1015, 1085, 1160, 1240, 1624, 1684, 1736, 1798, 2030, 2105, 2170, 2320, 2480, 2947, 3248, 3368, 3472, 3596, 4060, 4210, 4340, 4495, 5894, 6293, 6736, 7192, 8120, 8420, 8680, 8990, 11788, 12209, 12586, 13051, 14384, 14735, 16240, 16840, 17360, 17980, 23576, 24418, 25172, 26102, 29470, 31465, 33680, 35960, 47152, 48836, 50344, 52204, 58940, 61045, 62930, 65255, 71920, 85463, 91357, 97672, 100688, 104408, 117880, 122090, 125860, 130510, 170926, 182714, 195344, 208816, 235760, 244180, 251720, 261020, 341852, 365428, 378479, 427315, 456785, 488360, 503440, 522040, 683704, 730856, 756958, 854630, 913570, 976720, 1044080, 1367408, 1461712, 1513916, 1709260, 1827140, 1892395, 2649353, 3027832, 3418520, 3654280, 3784790, 5298706, 6055664, 6837040, 7308560, 7569580, 10597412, 13246765, 15139160, 21194824, 26493530, 30278320, 42389648, 52987060, 105974120, 211948240]

約数ペア:

[(1, 211948240), (2, 105974120), (4, 52987060), (5, 42389648), (7, 30278320), (8, 26493530), (10, 21194824), (14, 15139160), (16, 13246765), (20, 10597412), (28, 7569580), (29, 7308560), (31, 6837040), (35, 6055664), (40, 5298706), (56, 3784790), (58, 3654280), (62, 3418520), (70, 3027832), (80, 2649353), (112, 1892395), (116, 1827140), (124, 1709260), (140, 1513916), (145, 1461712), (155, 1367408), (203, 1044080), (217, 976720), (232, 913570), (248, 854630), (280, 756958), (290, 730856), (310, 683704), (406, 522040), (421, 503440), (434, 488360), (464, 456785), (496, 427315), (560, 378479), (580, 365428), (620, 341852), (812, 261020), (842, 251720), (868, 244180), (899, 235760), (1015, 208816), (1085, 195344), (1160, 182714), (1240, 170926), (1624, 130510), (1684, 125860), (1736, 122090), (1798, 117880), (2030, 104408), (2105, 100688), (2170, 97672), (2320, 91357), (2480, 85463), (2947, 71920), (3248, 65255), (3368, 62930), (3472, 61045), (3596, 58940), (4060, 52204), (4210, 50344), (4340, 48836), (4495, 47152), (5894, 35960), (6293, 33680), (6736, 31465), (7192, 29470), (8120, 26102), (8420, 25172), (8680, 24418), (8990, 23576), (11788, 17980), (12209, 17360), (12586, 16840), (13051, 16240), (14384, 14735)]