20120409100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{7027}}^1$

素因数の和:7208

約数の個数: 144

約数和(自身を含む): 50510517120

約数和(自身を除く): 30390108020

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 137, 190, 209, 220, 274, 275, 380, 418, 475, 548, 550, 685, 836, 950, 1045, 1100, 1370, 1507, 1900, 2090, 2603, 2740, 3014, 3425, 4180, 5206, 5225, 6028, 6850, 7027, 7535, 10412, 10450, 13015, 13700, 14054, 15070, 20900, 26030, 28108, 28633, 30140, 35135, 37675, 52060, 57266, 65075, 70270, 75350, 77297, 114532, 130150, 133513, 140540, 143165, 150700, 154594, 175675, 260300, 267026, 286330, 309188, 351350, 386485, 534052, 572660, 667565, 702700, 715825, 772970, 962699, 1335130, 1431650, 1468643, 1545940, 1925398, 1932425, 2670260, 2863300, 2937286, 3337825, 3850796, 3864850, 4813495, 5874572, 6675650, 7343215, 7729700, 9626990, 10589689, 13351300, 14686430, 18291281, 19253980, 21179378, 24067475, 29372860, 36582562, 36716075, 42358756, 48134950, 52948445, 73165124, 73432150, 91456405, 96269900, 105896890, 146864300, 182912810, 201204091, 211793780, 264742225, 365825620, 402408182, 457282025, 529484450, 804816364, 914564050, 1006020455, 1058968900, 1829128100, 2012040910, 4024081820, 5030102275, 10060204550, 20120409100]

約数ペア:

[(1, 20120409100), (2, 10060204550), (4, 5030102275), (5, 4024081820), (10, 2012040910), (11, 1829128100), (19, 1058968900), (20, 1006020455), (22, 914564050), (25, 804816364), (38, 529484450), (44, 457282025), (50, 402408182), (55, 365825620), (76, 264742225), (95, 211793780), (100, 201204091), (110, 182912810), (137, 146864300), (190, 105896890), (209, 96269900), (220, 91456405), (274, 73432150), (275, 73165124), (380, 52948445), (418, 48134950), (475, 42358756), (548, 36716075), (550, 36582562), (685, 29372860), (836, 24067475), (950, 21179378), (1045, 19253980), (1100, 18291281), (1370, 14686430), (1507, 13351300), (1900, 10589689), (2090, 9626990), (2603, 7729700), (2740, 7343215), (3014, 6675650), (3425, 5874572), (4180, 4813495), (5206, 3864850), (5225, 3850796), (6028, 3337825), (6850, 2937286), (7027, 2863300), (7535, 2670260), (10412, 1932425), (10450, 1925398), (13015, 1545940), (13700, 1468643), (14054, 1431650), (15070, 1335130), (20900, 962699), (26030, 772970), (28108, 715825), (28633, 702700), (30140, 667565), (35135, 572660), (37675, 534052), (52060, 386485), (57266, 351350), (65075, 309188), (70270, 286330), (75350, 267026), (77297, 260300), (114532, 175675), (130150, 154594), (133513, 150700), (140540, 143165)]