820902940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:308

約数の個数: 192

約数和(自身を含む): 2145927168

約数和(自身を除く): 1325024228

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 31, 44, 47, 52, 55, 62, 65, 94, 110, 124, 130, 143, 155, 188, 197, 220, 235, 260, 286, 310, 341, 394, 403, 470, 517, 572, 611, 620, 682, 715, 788, 806, 940, 985, 1034, 1222, 1364, 1430, 1457, 1612, 1705, 1970, 2015, 2068, 2167, 2444, 2561, 2585, 2860, 2914, 3055, 3410, 3940, 4030, 4334, 4433, 5122, 5170, 5828, 6107, 6110, 6721, 6820, 7285, 8060, 8668, 8866, 9259, 10244, 10340, 10835, 12214, 12220, 12805, 13442, 14570, 16027, 17732, 18518, 18941, 21670, 22165, 24428, 25610, 26884, 28171, 29140, 30535, 32054, 33605, 37036, 37882, 43340, 44330, 46295, 51220, 56342, 61070, 64108, 67177, 67210, 75764, 79391, 80135, 88660, 92590, 94705, 101849, 112684, 120367, 122140, 134354, 134420, 140855, 158782, 160270, 185180, 189410, 203698, 208351, 240734, 268708, 281710, 287029, 317564, 320540, 335885, 378820, 396955, 407396, 416702, 481468, 509245, 563420, 574058, 601835, 671770, 793910, 833404, 873301, 1018490, 1041755, 1148116, 1203670, 1324037, 1343540, 1435145, 1587820, 1746602, 2036980, 2083510, 2407340, 2648074, 2870290, 3157319, 3493204, 3731377, 4167020, 4366505, 5296148, 5740580, 6314638, 6620185, 7462754, 8733010, 12629276, 13240370, 14925508, 15786595, 17466020, 18656885, 26480740, 31573190, 37313770, 41045147, 63146380, 74627540, 82090294, 164180588, 205225735, 410451470, 820902940]

約数ペア:

[(1, 820902940), (2, 410451470), (4, 205225735), (5, 164180588), (10, 82090294), (11, 74627540), (13, 63146380), (20, 41045147), (22, 37313770), (26, 31573190), (31, 26480740), (44, 18656885), (47, 17466020), (52, 15786595), (55, 14925508), (62, 13240370), (65, 12629276), (94, 8733010), (110, 7462754), (124, 6620185), (130, 6314638), (143, 5740580), (155, 5296148), (188, 4366505), (197, 4167020), (220, 3731377), (235, 3493204), (260, 3157319), (286, 2870290), (310, 2648074), (341, 2407340), (394, 2083510), (403, 2036980), (470, 1746602), (517, 1587820), (572, 1435145), (611, 1343540), (620, 1324037), (682, 1203670), (715, 1148116), (788, 1041755), (806, 1018490), (940, 873301), (985, 833404), (1034, 793910), (1222, 671770), (1364, 601835), (1430, 574058), (1457, 563420), (1612, 509245), (1705, 481468), (1970, 416702), (2015, 407396), (2068, 396955), (2167, 378820), (2444, 335885), (2561, 320540), (2585, 317564), (2860, 287029), (2914, 281710), (3055, 268708), (3410, 240734), (3940, 208351), (4030, 203698), (4334, 189410), (4433, 185180), (5122, 160270), (5170, 158782), (5828, 140855), (6107, 134420), (6110, 134354), (6721, 122140), (6820, 120367), (7285, 112684), (8060, 101849), (8668, 94705), (8866, 92590), (9259, 88660), (10244, 80135), (10340, 79391), (10835, 75764), (12214, 67210), (12220, 67177), (12805, 64108), (13442, 61070), (14570, 56342), (16027, 51220), (17732, 46295), (18518, 44330), (18941, 43340), (21670, 37882), (22165, 37036), (24428, 33605), (25610, 32054), (26884, 30535), (28171, 29140)]