2021170900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 5154420096

約数和(自身を除く): 3133249196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 140, 157, 175, 212, 265, 314, 347, 350, 371, 530, 628, 694, 700, 742, 785, 1060, 1099, 1325, 1388, 1484, 1570, 1735, 1855, 2198, 2429, 2650, 3140, 3470, 3710, 3925, 4396, 4858, 5300, 5495, 6940, 7420, 7850, 8321, 8675, 9275, 9716, 10990, 12145, 15700, 16642, 17350, 18391, 18550, 21980, 24290, 27475, 33284, 34700, 36782, 37100, 41605, 48580, 54479, 54950, 58247, 60725, 73564, 83210, 91955, 108958, 109900, 116494, 121450, 128737, 166420, 183910, 208025, 217916, 232988, 242900, 257474, 272395, 291235, 367820, 381353, 416050, 459775, 514948, 544790, 582470, 643685, 762706, 832100, 919550, 1089580, 1164940, 1287370, 1361975, 1456175, 1525412, 1839100, 1906765, 2574740, 2723950, 2887387, 2912350, 3218425, 3813530, 5447900, 5774774, 5824700, 6436850, 7627060, 9533825, 11549548, 12873700, 14436935, 19067650, 20211709, 28873870, 38135300, 40423418, 57747740, 72184675, 80846836, 101058545, 144369350, 202117090, 288738700, 404234180, 505292725, 1010585450, 2021170900]

約数ペア:

[(1, 2021170900), (2, 1010585450), (4, 505292725), (5, 404234180), (7, 288738700), (10, 202117090), (14, 144369350), (20, 101058545), (25, 80846836), (28, 72184675), (35, 57747740), (50, 40423418), (53, 38135300), (70, 28873870), (100, 20211709), (106, 19067650), (140, 14436935), (157, 12873700), (175, 11549548), (212, 9533825), (265, 7627060), (314, 6436850), (347, 5824700), (350, 5774774), (371, 5447900), (530, 3813530), (628, 3218425), (694, 2912350), (700, 2887387), (742, 2723950), (785, 2574740), (1060, 1906765), (1099, 1839100), (1325, 1525412), (1388, 1456175), (1484, 1361975), (1570, 1287370), (1735, 1164940), (1855, 1089580), (2198, 919550), (2429, 832100), (2650, 762706), (3140, 643685), (3470, 582470), (3710, 544790), (3925, 514948), (4396, 459775), (4858, 416050), (5300, 381353), (5495, 367820), (6940, 291235), (7420, 272395), (7850, 257474), (8321, 242900), (8675, 232988), (9275, 217916), (9716, 208025), (10990, 183910), (12145, 166420), (15700, 128737), (16642, 121450), (17350, 116494), (18391, 109900), (18550, 108958), (21980, 91955), (24290, 83210), (27475, 73564), (33284, 60725), (34700, 58247), (36782, 54950), (37100, 54479), (41605, 48580)]