638977920

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{47543}}^1$

素因数の和:47572

約数の個数: 128

約数和(自身を含む): 2327754240

約数和(自身を除く): 1688776320

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, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 47543, 95086, 142629, 190172, 237715, 285258, 332801, 380344, 475430, 570516, 665602, 713145, 760688, 950860, 998403, 1141032, 1331204, 1426290, 1521376, 1664005, 1901720, 1996806, 2282064, 2662408, 2852580, 3042752, 3328010, 3803440, 3993612, 4564128, 4992015, 5324816, 5705160, 6085504, 6656020, 7606880, 7987224, 9128256, 9984030, 10649632, 11410320, 13312040, 15213760, 15974448, 18256512, 19968060, 21299264, 22820640, 26624080, 30427520, 31948896, 39936120, 42598528, 45641280, 53248160, 63897792, 79872240, 91282560, 106496320, 127795584, 159744480, 212992640, 319488960, 638977920]

約数ペア:

[(1, 638977920), (2, 319488960), (3, 212992640), (4, 159744480), (5, 127795584), (6, 106496320), (7, 91282560), (8, 79872240), (10, 63897792), (12, 53248160), (14, 45641280), (15, 42598528), (16, 39936120), (20, 31948896), (21, 30427520), (24, 26624080), (28, 22820640), (30, 21299264), (32, 19968060), (35, 18256512), (40, 15974448), (42, 15213760), (48, 13312040), (56, 11410320), (60, 10649632), (64, 9984030), (70, 9128256), (80, 7987224), (84, 7606880), (96, 6656020), (105, 6085504), (112, 5705160), (120, 5324816), (128, 4992015), (140, 4564128), (160, 3993612), (168, 3803440), (192, 3328010), (210, 3042752), (224, 2852580), (240, 2662408), (280, 2282064), (320, 1996806), (336, 1901720), (384, 1664005), (420, 1521376), (448, 1426290), (480, 1331204), (560, 1141032), (640, 998403), (672, 950860), (840, 760688), (896, 713145), (960, 665602), (1120, 570516), (1344, 475430), (1680, 380344), (1920, 332801), (2240, 285258), (2688, 237715), (3360, 190172), (4480, 142629), (6720, 95086), (13440, 47543)]