643973940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{541}}^1$

素因数の和:962

約数の個数: 144

約数和(自身を含む): 2077442640

約数和(自身を除く): 1433468700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 389, 510, 541, 612, 765, 778, 1020, 1082, 1167, 1530, 1556, 1623, 1945, 2164, 2334, 2705, 3060, 3246, 3501, 3890, 4668, 4869, 5410, 5835, 6492, 6613, 7002, 7780, 8115, 9197, 9738, 10820, 11670, 13226, 14004, 16230, 17505, 18394, 19476, 19839, 23340, 24345, 26452, 27591, 32460, 33065, 35010, 36788, 39678, 45985, 48690, 55182, 59517, 66130, 70020, 79356, 82773, 91970, 97380, 99195, 110364, 119034, 132260, 137955, 165546, 183940, 198390, 210449, 238068, 275910, 297585, 331092, 396780, 413865, 420898, 551820, 595170, 631347, 827730, 841796, 1052245, 1190340, 1262694, 1655460, 1894041, 2104490, 2525388, 3156735, 3577633, 3788082, 4208980, 6313470, 7155266, 7576164, 9470205, 10732899, 12626940, 14310532, 17888165, 18940410, 21465798, 32198697, 35776330, 37880820, 42931596, 53664495, 64397394, 71552660, 107328990, 128794788, 160993485, 214657980, 321986970, 643973940]

約数ペア:

[(1, 643973940), (2, 321986970), (3, 214657980), (4, 160993485), (5, 128794788), (6, 107328990), (9, 71552660), (10, 64397394), (12, 53664495), (15, 42931596), (17, 37880820), (18, 35776330), (20, 32198697), (30, 21465798), (34, 18940410), (36, 17888165), (45, 14310532), (51, 12626940), (60, 10732899), (68, 9470205), (85, 7576164), (90, 7155266), (102, 6313470), (153, 4208980), (170, 3788082), (180, 3577633), (204, 3156735), (255, 2525388), (306, 2104490), (340, 1894041), (389, 1655460), (510, 1262694), (541, 1190340), (612, 1052245), (765, 841796), (778, 827730), (1020, 631347), (1082, 595170), (1167, 551820), (1530, 420898), (1556, 413865), (1623, 396780), (1945, 331092), (2164, 297585), (2334, 275910), (2705, 238068), (3060, 210449), (3246, 198390), (3501, 183940), (3890, 165546), (4668, 137955), (4869, 132260), (5410, 119034), (5835, 110364), (6492, 99195), (6613, 97380), (7002, 91970), (7780, 82773), (8115, 79356), (9197, 70020), (9738, 66130), (10820, 59517), (11670, 55182), (13226, 48690), (14004, 45985), (16230, 39678), (17505, 36788), (18394, 35010), (19476, 33065), (19839, 32460), (23340, 27591), (24345, 26452)]