397868520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1523}}^1$

素因数の和:1855

約数の個数: 128

約数和(自身を含む): 1369405440

約数和(自身を除く): 971536920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 311, 420, 622, 840, 933, 1244, 1523, 1555, 1866, 2177, 2488, 3046, 3110, 3732, 4354, 4569, 4665, 6092, 6220, 6531, 7464, 7615, 8708, 9138, 9330, 10661, 10885, 12184, 12440, 13062, 15230, 17416, 18276, 18660, 21322, 21770, 22845, 26124, 30460, 31983, 32655, 36552, 37320, 42644, 43540, 45690, 52248, 53305, 60920, 63966, 65310, 85288, 87080, 91380, 106610, 127932, 130620, 159915, 182760, 213220, 255864, 261240, 319830, 426440, 473653, 639660, 947306, 1279320, 1420959, 1894612, 2368265, 2841918, 3315571, 3789224, 4736530, 5683836, 6631142, 7104795, 9473060, 9946713, 11367672, 13262284, 14209590, 16577855, 18946120, 19893426, 26524568, 28419180, 33155710, 39786852, 49733565, 56838360, 66311420, 79573704, 99467130, 132622840, 198934260, 397868520]

約数ペア:

[(1, 397868520), (2, 198934260), (3, 132622840), (4, 99467130), (5, 79573704), (6, 66311420), (7, 56838360), (8, 49733565), (10, 39786852), (12, 33155710), (14, 28419180), (15, 26524568), (20, 19893426), (21, 18946120), (24, 16577855), (28, 14209590), (30, 13262284), (35, 11367672), (40, 9946713), (42, 9473060), (56, 7104795), (60, 6631142), (70, 5683836), (84, 4736530), (105, 3789224), (120, 3315571), (140, 2841918), (168, 2368265), (210, 1894612), (280, 1420959), (311, 1279320), (420, 947306), (622, 639660), (840, 473653), (933, 426440), (1244, 319830), (1523, 261240), (1555, 255864), (1866, 213220), (2177, 182760), (2488, 159915), (3046, 130620), (3110, 127932), (3732, 106610), (4354, 91380), (4569, 87080), (4665, 85288), (6092, 65310), (6220, 63966), (6531, 60920), (7464, 53305), (7615, 52248), (8708, 45690), (9138, 43540), (9330, 42644), (10661, 37320), (10885, 36552), (12184, 32655), (12440, 31983), (13062, 30460), (15230, 26124), (17416, 22845), (18276, 21770), (18660, 21322)]