20161257620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:874

約数の個数: 192

約数和(自身を含む): 51356712960

約数和(自身を除く): 31195455340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 61, 70, 116, 122, 127, 140, 145, 203, 244, 254, 290, 305, 406, 427, 508, 580, 610, 635, 641, 812, 854, 889, 1015, 1220, 1270, 1282, 1708, 1769, 1778, 2030, 2135, 2540, 2564, 3205, 3538, 3556, 3683, 4060, 4270, 4445, 4487, 6410, 7076, 7366, 7747, 8540, 8845, 8890, 8974, 12383, 12820, 14732, 15494, 17690, 17780, 17948, 18415, 18589, 22435, 24766, 25781, 30988, 35380, 36830, 37178, 38735, 39101, 44870, 49532, 51562, 54229, 61915, 73660, 74356, 77470, 78202, 81407, 89740, 92945, 103124, 108458, 123830, 128905, 130123, 154940, 156404, 162814, 185890, 195505, 216916, 224663, 247660, 257810, 260246, 271145, 273707, 325628, 371780, 391010, 407035, 449326, 515620, 520492, 542290, 547414, 569849, 650615, 782020, 814070, 898652, 1084580, 1094828, 1123315, 1133929, 1139698, 1301230, 1368535, 1572641, 1628140, 2246630, 2267858, 2279396, 2360803, 2602460, 2737070, 2849245, 3145282, 4493260, 4535716, 4721606, 4965827, 5474140, 5669645, 5698490, 6290564, 7863205, 7937503, 9443212, 9931654, 11339290, 11396980, 11804015, 15726410, 15875006, 16525621, 19863308, 22678580, 23608030, 24829135, 31452820, 31750012, 33051242, 34760789, 39687515, 47216060, 49658270, 66102484, 69521578, 79375030, 82628105, 99316540, 139043156, 144008983, 158750060, 165256210, 173803945, 288017966, 330512420, 347607890, 576035932, 695215780, 720044915, 1008062881, 1440089830, 2016125762, 2880179660, 4032251524, 5040314405, 10080628810, 20161257620]

約数ペア:

[(1, 20161257620), (2, 10080628810), (4, 5040314405), (5, 4032251524), (7, 2880179660), (10, 2016125762), (14, 1440089830), (20, 1008062881), (28, 720044915), (29, 695215780), (35, 576035932), (58, 347607890), (61, 330512420), (70, 288017966), (116, 173803945), (122, 165256210), (127, 158750060), (140, 144008983), (145, 139043156), (203, 99316540), (244, 82628105), (254, 79375030), (290, 69521578), (305, 66102484), (406, 49658270), (427, 47216060), (508, 39687515), (580, 34760789), (610, 33051242), (635, 31750012), (641, 31452820), (812, 24829135), (854, 23608030), (889, 22678580), (1015, 19863308), (1220, 16525621), (1270, 15875006), (1282, 15726410), (1708, 11804015), (1769, 11396980), (1778, 11339290), (2030, 9931654), (2135, 9443212), (2540, 7937503), (2564, 7863205), (3205, 6290564), (3538, 5698490), (3556, 5669645), (3683, 5474140), (4060, 4965827), (4270, 4721606), (4445, 4535716), (4487, 4493260), (6410, 3145282), (7076, 2849245), (7366, 2737070), (7747, 2602460), (8540, 2360803), (8845, 2279396), (8890, 2267858), (8974, 2246630), (12383, 1628140), (12820, 1572641), (14732, 1368535), (15494, 1301230), (17690, 1139698), (17780, 1133929), (17948, 1123315), (18415, 1094828), (18589, 1084580), (22435, 898652), (24766, 814070), (25781, 782020), (30988, 650615), (35380, 569849), (36830, 547414), (37178, 542290), (38735, 520492), (39101, 515620), (44870, 449326), (49532, 407035), (51562, 391010), (54229, 371780), (61915, 325628), (73660, 273707), (74356, 271145), (77470, 260246), (78202, 257810), (81407, 247660), (89740, 224663), (92945, 216916), (103124, 195505), (108458, 185890), (123830, 162814), (128905, 156404), (130123, 154940)]