257794320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{153449}}^1$

素因数の和:153472

約数の個数: 80

約数和(自身を含む): 913334400

約数和(自身を除く): 655540080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 153449, 306898, 460347, 613796, 767245, 920694, 1074143, 1227592, 1534490, 1841388, 2148286, 2301735, 2455184, 3068980, 3222429, 3682776, 4296572, 4603470, 5370715, 6137960, 6444858, 7365552, 8593144, 9206940, 10741430, 12275920, 12889716, 16112145, 17186288, 18413880, 21482860, 25779432, 32224290, 36827760, 42965720, 51558864, 64448580, 85931440, 128897160, 257794320]

約数ペア:

[(1, 257794320), (2, 128897160), (3, 85931440), (4, 64448580), (5, 51558864), (6, 42965720), (7, 36827760), (8, 32224290), (10, 25779432), (12, 21482860), (14, 18413880), (15, 17186288), (16, 16112145), (20, 12889716), (21, 12275920), (24, 10741430), (28, 9206940), (30, 8593144), (35, 7365552), (40, 6444858), (42, 6137960), (48, 5370715), (56, 4603470), (60, 4296572), (70, 3682776), (80, 3222429), (84, 3068980), (105, 2455184), (112, 2301735), (120, 2148286), (140, 1841388), (168, 1534490), (210, 1227592), (240, 1074143), (280, 920694), (336, 767245), (420, 613796), (560, 460347), (840, 306898), (1680, 153449)]