221581920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{9421}}^1$

素因数の和:9453

約数の個数: 144

約数和(自身を含む): 812025648

約数和(自身を除く): 590443728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 9421, 11760, 18842, 23520, 28263, 37684, 47105, 56526, 65947, 75368, 94210, 113052, 131894, 141315, 150736, 188420, 197841, 226104, 263788, 282630, 301472, 329735, 376840, 395682, 452208, 461629, 527576, 565260, 659470, 753680, 791364, 904416, 923258, 989205, 1055152, 1130520, 1318940, 1384887, 1507360, 1582728, 1846516, 1978410, 2110304, 2261040, 2308145, 2637880, 2769774, 3165456, 3693032, 3956820, 4522080, 4616290, 5275760, 5539548, 6330912, 6924435, 7386064, 7913640, 9232580, 10551520, 11079096, 13848870, 14772128, 15827280, 18465160, 22158192, 27697740, 31654560, 36930320, 44316384, 55395480, 73860640, 110790960, 221581920]

約数ペア:

[(1, 221581920), (2, 110790960), (3, 73860640), (4, 55395480), (5, 44316384), (6, 36930320), (7, 31654560), (8, 27697740), (10, 22158192), (12, 18465160), (14, 15827280), (15, 14772128), (16, 13848870), (20, 11079096), (21, 10551520), (24, 9232580), (28, 7913640), (30, 7386064), (32, 6924435), (35, 6330912), (40, 5539548), (42, 5275760), (48, 4616290), (49, 4522080), (56, 3956820), (60, 3693032), (70, 3165456), (80, 2769774), (84, 2637880), (96, 2308145), (98, 2261040), (105, 2110304), (112, 1978410), (120, 1846516), (140, 1582728), (147, 1507360), (160, 1384887), (168, 1318940), (196, 1130520), (210, 1055152), (224, 989205), (240, 923258), (245, 904416), (280, 791364), (294, 753680), (336, 659470), (392, 565260), (420, 527576), (480, 461629), (490, 452208), (560, 395682), (588, 376840), (672, 329735), (735, 301472), (784, 282630), (840, 263788), (980, 226104), (1120, 197841), (1176, 188420), (1470, 150736), (1568, 141315), (1680, 131894), (1960, 113052), (2352, 94210), (2940, 75368), (3360, 65947), (3920, 56526), (4704, 47105), (5880, 37684), (7840, 28263), (9421, 23520), (11760, 18842)]