20778444840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{20297}}^1$

素因数の和:20779

約数の個数: 128

約数和(自身を含む): 65765520000

約数和(自身を除く): 44987075160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 449, 456, 570, 760, 898, 1140, 1347, 1796, 2245, 2280, 2694, 3592, 4490, 5388, 6735, 8531, 8980, 10776, 13470, 17062, 17960, 20297, 25593, 26940, 34124, 40594, 42655, 51186, 53880, 60891, 68248, 81188, 85310, 101485, 102372, 121782, 127965, 162376, 170620, 202970, 204744, 243564, 255930, 304455, 341240, 385643, 405940, 487128, 511860, 608910, 771286, 811880, 1023720, 1156929, 1217820, 1542572, 1928215, 2313858, 2435640, 3085144, 3856430, 4627716, 5784645, 7712860, 9113353, 9255432, 11569290, 15425720, 18226706, 23138580, 27340059, 36453412, 45566765, 46277160, 54680118, 72906824, 91133530, 109360236, 136700295, 173153707, 182267060, 218720472, 273400590, 346307414, 364534120, 519461121, 546801180, 692614828, 865768535, 1038922242, 1093602360, 1385229656, 1731537070, 2077844484, 2597305605, 3463074140, 4155688968, 5194611210, 6926148280, 10389222420, 20778444840]

約数ペア:

[(1, 20778444840), (2, 10389222420), (3, 6926148280), (4, 5194611210), (5, 4155688968), (6, 3463074140), (8, 2597305605), (10, 2077844484), (12, 1731537070), (15, 1385229656), (19, 1093602360), (20, 1038922242), (24, 865768535), (30, 692614828), (38, 546801180), (40, 519461121), (57, 364534120), (60, 346307414), (76, 273400590), (95, 218720472), (114, 182267060), (120, 173153707), (152, 136700295), (190, 109360236), (228, 91133530), (285, 72906824), (380, 54680118), (449, 46277160), (456, 45566765), (570, 36453412), (760, 27340059), (898, 23138580), (1140, 18226706), (1347, 15425720), (1796, 11569290), (2245, 9255432), (2280, 9113353), (2694, 7712860), (3592, 5784645), (4490, 4627716), (5388, 3856430), (6735, 3085144), (8531, 2435640), (8980, 2313858), (10776, 1928215), (13470, 1542572), (17062, 1217820), (17960, 1156929), (20297, 1023720), (25593, 811880), (26940, 771286), (34124, 608910), (40594, 511860), (42655, 487128), (51186, 405940), (53880, 385643), (60891, 341240), (68248, 304455), (81188, 255930), (85310, 243564), (101485, 204744), (102372, 202970), (121782, 170620), (127965, 162376)]