209722380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:720

約数の個数: 192

約数和(自身を含む): 724792320

約数和(自身を除く): 515069940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 41, 42, 57, 60, 70, 76, 82, 84, 95, 105, 114, 123, 133, 140, 164, 190, 205, 210, 228, 246, 266, 285, 287, 380, 399, 410, 420, 492, 532, 570, 574, 615, 641, 665, 779, 798, 820, 861, 1140, 1148, 1230, 1282, 1330, 1435, 1558, 1596, 1722, 1923, 1995, 2337, 2460, 2564, 2660, 2870, 3116, 3205, 3444, 3846, 3895, 3990, 4305, 4487, 4674, 5453, 5740, 6410, 7692, 7790, 7980, 8610, 8974, 9348, 9615, 10906, 11685, 12179, 12820, 13461, 15580, 16359, 17220, 17948, 19230, 21812, 22435, 23370, 24358, 26281, 26922, 27265, 32718, 36537, 38460, 44870, 46740, 48716, 52562, 53844, 54530, 60895, 65436, 67305, 73074, 78843, 81795, 85253, 89740, 105124, 109060, 121790, 131405, 134610, 146148, 157686, 163590, 170506, 182685, 183967, 243580, 255759, 262810, 269220, 315372, 327180, 341012, 365370, 367934, 394215, 426265, 499339, 511518, 525620, 551901, 730740, 735868, 788430, 852530, 919835, 998678, 1023036, 1103802, 1278795, 1498017, 1576860, 1705060, 1839670, 1997356, 2207604, 2496695, 2557590, 2759505, 2996034, 3495373, 3679340, 4993390, 5115180, 5519010, 5992068, 6990746, 7490085, 9986780, 10486119, 11038020, 13981492, 14980170, 17476865, 20972238, 29960340, 34953730, 41944476, 52430595, 69907460, 104861190, 209722380]

約数ペア:

[(1, 209722380), (2, 104861190), (3, 69907460), (4, 52430595), (5, 41944476), (6, 34953730), (7, 29960340), (10, 20972238), (12, 17476865), (14, 14980170), (15, 13981492), (19, 11038020), (20, 10486119), (21, 9986780), (28, 7490085), (30, 6990746), (35, 5992068), (38, 5519010), (41, 5115180), (42, 4993390), (57, 3679340), (60, 3495373), (70, 2996034), (76, 2759505), (82, 2557590), (84, 2496695), (95, 2207604), (105, 1997356), (114, 1839670), (123, 1705060), (133, 1576860), (140, 1498017), (164, 1278795), (190, 1103802), (205, 1023036), (210, 998678), (228, 919835), (246, 852530), (266, 788430), (285, 735868), (287, 730740), (380, 551901), (399, 525620), (410, 511518), (420, 499339), (492, 426265), (532, 394215), (570, 367934), (574, 365370), (615, 341012), (641, 327180), (665, 315372), (779, 269220), (798, 262810), (820, 255759), (861, 243580), (1140, 183967), (1148, 182685), (1230, 170506), (1282, 163590), (1330, 157686), (1435, 146148), (1558, 134610), (1596, 131405), (1722, 121790), (1923, 109060), (1995, 105124), (2337, 89740), (2460, 85253), (2564, 81795), (2660, 78843), (2870, 73074), (3116, 67305), (3205, 65436), (3444, 60895), (3846, 54530), (3895, 53844), (3990, 52562), (4305, 48716), (4487, 46740), (4674, 44870), (5453, 38460), (5740, 36537), (6410, 32718), (7692, 27265), (7790, 26922), (7980, 26281), (8610, 24358), (8974, 23370), (9348, 22435), (9615, 21812), (10906, 19230), (11685, 17948), (12179, 17220), (12820, 16359), (13461, 15580)]