661368120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{2269}}^1$

素因数の和:2637

約数の個数: 128

約数和(自身を含む): 2275084800

約数和(自身を除く): 1613716680

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, 347, 420, 694, 840, 1041, 1388, 1735, 2082, 2269, 2429, 2776, 3470, 4164, 4538, 4858, 5205, 6807, 6940, 7287, 8328, 9076, 9716, 10410, 11345, 12145, 13614, 13880, 14574, 15883, 18152, 19432, 20820, 22690, 24290, 27228, 29148, 31766, 34035, 36435, 41640, 45380, 47649, 48580, 54456, 58296, 63532, 68070, 72870, 79415, 90760, 95298, 97160, 127064, 136140, 145740, 158830, 190596, 238245, 272280, 291480, 317660, 381192, 476490, 635320, 787343, 952980, 1574686, 1905960, 2362029, 3149372, 3936715, 4724058, 5511401, 6298744, 7873430, 9448116, 11022802, 11810145, 15746860, 16534203, 18896232, 22045604, 23620290, 27557005, 31493720, 33068406, 44091208, 47240580, 55114010, 66136812, 82671015, 94481160, 110228020, 132273624, 165342030, 220456040, 330684060, 661368120]

約数ペア:

[(1, 661368120), (2, 330684060), (3, 220456040), (4, 165342030), (5, 132273624), (6, 110228020), (7, 94481160), (8, 82671015), (10, 66136812), (12, 55114010), (14, 47240580), (15, 44091208), (20, 33068406), (21, 31493720), (24, 27557005), (28, 23620290), (30, 22045604), (35, 18896232), (40, 16534203), (42, 15746860), (56, 11810145), (60, 11022802), (70, 9448116), (84, 7873430), (105, 6298744), (120, 5511401), (140, 4724058), (168, 3936715), (210, 3149372), (280, 2362029), (347, 1905960), (420, 1574686), (694, 952980), (840, 787343), (1041, 635320), (1388, 476490), (1735, 381192), (2082, 317660), (2269, 291480), (2429, 272280), (2776, 238245), (3470, 190596), (4164, 158830), (4538, 145740), (4858, 136140), (5205, 127064), (6807, 97160), (6940, 95298), (7287, 90760), (8328, 79415), (9076, 72870), (9716, 68070), (10410, 63532), (11345, 58296), (12145, 54456), (13614, 48580), (13880, 47649), (14574, 45380), (15883, 41640), (18152, 36435), (19432, 34035), (20820, 31766), (22690, 29148), (24290, 27228)]