20196979660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{4201}}^1$

素因数の和:4316

約数の個数: 144

約数和(自身を含む): 51085764576

約数和(自身を除く): 30888784916

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 41, 44, 52, 55, 65, 82, 110, 130, 143, 164, 205, 220, 260, 286, 410, 451, 533, 572, 715, 820, 902, 1066, 1430, 1681, 1804, 2132, 2255, 2665, 2860, 3362, 4201, 4510, 5330, 5863, 6724, 8402, 8405, 9020, 10660, 11726, 16804, 16810, 18491, 21005, 21853, 23452, 29315, 33620, 36982, 42010, 43706, 46211, 54613, 58630, 73964, 84020, 87412, 92422, 92455, 109226, 109265, 117260, 172241, 184844, 184910, 218452, 218530, 231055, 240383, 273065, 344482, 369820, 437060, 462110, 480766, 546130, 600743, 688964, 861205, 924220, 961532, 1092260, 1201486, 1201915, 1722410, 1894651, 2239133, 2402972, 2403830, 3003715, 3444820, 3789302, 4478266, 4807660, 6007430, 7061881, 7578604, 8956532, 9473255, 11195665, 12014860, 14123762, 18946510, 22391330, 24630463, 28247524, 35309405, 37893020, 44782660, 49260926, 70618810, 77680691, 91804453, 98521852, 123152315, 141237620, 155361382, 183608906, 246304630, 310722764, 367217812, 388403455, 459022265, 492609260, 776806910, 918044530, 1009848983, 1553613820, 1836089060, 2019697966, 4039395932, 5049244915, 10098489830, 20196979660]

約数ペア:

[(1, 20196979660), (2, 10098489830), (4, 5049244915), (5, 4039395932), (10, 2019697966), (11, 1836089060), (13, 1553613820), (20, 1009848983), (22, 918044530), (26, 776806910), (41, 492609260), (44, 459022265), (52, 388403455), (55, 367217812), (65, 310722764), (82, 246304630), (110, 183608906), (130, 155361382), (143, 141237620), (164, 123152315), (205, 98521852), (220, 91804453), (260, 77680691), (286, 70618810), (410, 49260926), (451, 44782660), (533, 37893020), (572, 35309405), (715, 28247524), (820, 24630463), (902, 22391330), (1066, 18946510), (1430, 14123762), (1681, 12014860), (1804, 11195665), (2132, 9473255), (2255, 8956532), (2665, 7578604), (2860, 7061881), (3362, 6007430), (4201, 4807660), (4510, 4478266), (5330, 3789302), (5863, 3444820), (6724, 3003715), (8402, 2403830), (8405, 2402972), (9020, 2239133), (10660, 1894651), (11726, 1722410), (16804, 1201915), (16810, 1201486), (18491, 1092260), (21005, 961532), (21853, 924220), (23452, 861205), (29315, 688964), (33620, 600743), (36982, 546130), (42010, 480766), (43706, 462110), (46211, 437060), (54613, 369820), (58630, 344482), (73964, 273065), (84020, 240383), (87412, 231055), (92422, 218530), (92455, 218452), (109226, 184910), (109265, 184844), (117260, 172241)]