128581880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{227}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 359079480

約数和(自身を除く): 230497600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 85, 98, 119, 136, 140, 170, 196, 227, 238, 245, 280, 289, 340, 392, 454, 476, 490, 578, 595, 680, 833, 908, 952, 980, 1135, 1156, 1190, 1445, 1589, 1666, 1816, 1960, 2023, 2270, 2312, 2380, 2890, 3178, 3332, 3859, 4046, 4165, 4540, 4760, 5780, 6356, 6664, 7718, 7945, 8092, 8330, 9080, 10115, 11123, 11560, 12712, 14161, 15436, 15890, 16184, 16660, 19295, 20230, 22246, 27013, 28322, 30872, 31780, 33320, 38590, 40460, 44492, 54026, 55615, 56644, 63560, 65603, 70805, 77180, 80920, 88984, 108052, 111230, 113288, 131206, 135065, 141610, 154360, 189091, 216104, 222460, 262412, 270130, 283220, 328015, 378182, 444920, 459221, 524824, 540260, 566440, 656030, 756364, 918442, 945455, 1080520, 1312060, 1512728, 1836884, 1890910, 2296105, 2624120, 3214547, 3673768, 3781820, 4592210, 6429094, 7563640, 9184420, 12858188, 16072735, 18368840, 25716376, 32145470, 64290940, 128581880]

約数ペア:

[(1, 128581880), (2, 64290940), (4, 32145470), (5, 25716376), (7, 18368840), (8, 16072735), (10, 12858188), (14, 9184420), (17, 7563640), (20, 6429094), (28, 4592210), (34, 3781820), (35, 3673768), (40, 3214547), (49, 2624120), (56, 2296105), (68, 1890910), (70, 1836884), (85, 1512728), (98, 1312060), (119, 1080520), (136, 945455), (140, 918442), (170, 756364), (196, 656030), (227, 566440), (238, 540260), (245, 524824), (280, 459221), (289, 444920), (340, 378182), (392, 328015), (454, 283220), (476, 270130), (490, 262412), (578, 222460), (595, 216104), (680, 189091), (833, 154360), (908, 141610), (952, 135065), (980, 131206), (1135, 113288), (1156, 111230), (1190, 108052), (1445, 88984), (1589, 80920), (1666, 77180), (1816, 70805), (1960, 65603), (2023, 63560), (2270, 56644), (2312, 55615), (2380, 54026), (2890, 44492), (3178, 40460), (3332, 38590), (3859, 33320), (4046, 31780), (4165, 30872), (4540, 28322), (4760, 27013), (5780, 22246), (6356, 20230), (6664, 19295), (7718, 16660), (7945, 16184), (8092, 15890), (8330, 15436), (9080, 14161), (10115, 12712), (11123, 11560)]