219921660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{503}}^1$

素因数の和:872

約数の個数: 144

約数和(自身を含む): 766112256

約数和(自身を除く): 546190596

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 347, 420, 503, 630, 694, 1006, 1041, 1260, 1388, 1509, 1735, 2012, 2082, 2429, 2515, 3018, 3123, 3470, 3521, 4164, 4527, 4858, 5030, 5205, 6036, 6246, 6940, 7042, 7287, 7545, 9054, 9716, 10060, 10410, 10563, 12145, 12492, 14084, 14574, 15090, 15615, 17605, 18108, 20820, 21126, 21861, 22635, 24290, 29148, 30180, 31230, 31689, 35210, 36435, 42252, 43722, 45270, 48580, 52815, 62460, 63378, 70420, 72870, 87444, 90540, 105630, 109305, 126756, 145740, 158445, 174541, 211260, 218610, 316890, 349082, 437220, 523623, 633780, 698164, 872705, 1047246, 1221787, 1570869, 1745410, 2094492, 2443574, 2618115, 3141738, 3490820, 3665361, 4887148, 5236230, 6108935, 6283476, 7330722, 7854345, 10472460, 10996083, 12217870, 14661444, 15708690, 18326805, 21992166, 24435740, 31417380, 36653610, 43984332, 54980415, 73307220, 109960830, 219921660]

約数ペア:

[(1, 219921660), (2, 109960830), (3, 73307220), (4, 54980415), (5, 43984332), (6, 36653610), (7, 31417380), (9, 24435740), (10, 21992166), (12, 18326805), (14, 15708690), (15, 14661444), (18, 12217870), (20, 10996083), (21, 10472460), (28, 7854345), (30, 7330722), (35, 6283476), (36, 6108935), (42, 5236230), (45, 4887148), (60, 3665361), (63, 3490820), (70, 3141738), (84, 2618115), (90, 2443574), (105, 2094492), (126, 1745410), (140, 1570869), (180, 1221787), (210, 1047246), (252, 872705), (315, 698164), (347, 633780), (420, 523623), (503, 437220), (630, 349082), (694, 316890), (1006, 218610), (1041, 211260), (1260, 174541), (1388, 158445), (1509, 145740), (1735, 126756), (2012, 109305), (2082, 105630), (2429, 90540), (2515, 87444), (3018, 72870), (3123, 70420), (3470, 63378), (3521, 62460), (4164, 52815), (4527, 48580), (4858, 45270), (5030, 43722), (5205, 42252), (6036, 36435), (6246, 35210), (6940, 31689), (7042, 31230), (7287, 30180), (7545, 29148), (9054, 24290), (9716, 22635), (10060, 21861), (10410, 21126), (10563, 20820), (12145, 18108), (12492, 17605), (14084, 15615), (14574, 15090)]