420120400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:246

約数の個数: 240

約数和(自身を含む): 1245456000

約数和(自身を除く): 825335600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 25, 28, 35, 38, 40, 50, 53, 56, 70, 76, 80, 95, 100, 106, 112, 133, 140, 149, 152, 175, 190, 200, 212, 265, 266, 280, 298, 304, 350, 371, 380, 400, 424, 475, 530, 532, 560, 596, 665, 700, 742, 745, 760, 848, 950, 1007, 1043, 1060, 1064, 1192, 1325, 1330, 1400, 1484, 1490, 1520, 1855, 1900, 2014, 2086, 2120, 2128, 2384, 2650, 2660, 2800, 2831, 2968, 2980, 3325, 3710, 3725, 3800, 4028, 4172, 4240, 5035, 5215, 5300, 5320, 5662, 5936, 5960, 6650, 7049, 7420, 7450, 7600, 7897, 8056, 8344, 9275, 10070, 10430, 10600, 10640, 11324, 11920, 13300, 14098, 14155, 14840, 14900, 15794, 16112, 16688, 18550, 19817, 20140, 20860, 21200, 22648, 25175, 26075, 26600, 28196, 28310, 29680, 29800, 31588, 35245, 37100, 39485, 39634, 40280, 41720, 45296, 50350, 52150, 53200, 55279, 56392, 56620, 59600, 63176, 70490, 70775, 74200, 78970, 79268, 80560, 83440, 99085, 100700, 104300, 110558, 112784, 113240, 126352, 140980, 141550, 148400, 150043, 157940, 158536, 176225, 197425, 198170, 201400, 208600, 221116, 226480, 276395, 281960, 283100, 300086, 315880, 317072, 352450, 394850, 396340, 402800, 417200, 442232, 495425, 552790, 563920, 566200, 600172, 631760, 704900, 750215, 789700, 792680, 884464, 990850, 1050301, 1105580, 1132400, 1200344, 1381975, 1409800, 1500430, 1579400, 1585360, 1981700, 2100602, 2211160, 2400688, 2763950, 2819600, 3000860, 3158800, 3751075, 3963400, 4201204, 4422320, 5251505, 5527900, 6001720, 7502150, 7926800, 8402408, 10503010, 11055800, 12003440, 15004300, 16804816, 21006020, 22111600, 26257525, 30008600, 42012040, 52515050, 60017200, 84024080, 105030100, 210060200, 420120400]

約数ペア:

[(1, 420120400), (2, 210060200), (4, 105030100), (5, 84024080), (7, 60017200), (8, 52515050), (10, 42012040), (14, 30008600), (16, 26257525), (19, 22111600), (20, 21006020), (25, 16804816), (28, 15004300), (35, 12003440), (38, 11055800), (40, 10503010), (50, 8402408), (53, 7926800), (56, 7502150), (70, 6001720), (76, 5527900), (80, 5251505), (95, 4422320), (100, 4201204), (106, 3963400), (112, 3751075), (133, 3158800), (140, 3000860), (149, 2819600), (152, 2763950), (175, 2400688), (190, 2211160), (200, 2100602), (212, 1981700), (265, 1585360), (266, 1579400), (280, 1500430), (298, 1409800), (304, 1381975), (350, 1200344), (371, 1132400), (380, 1105580), (400, 1050301), (424, 990850), (475, 884464), (530, 792680), (532, 789700), (560, 750215), (596, 704900), (665, 631760), (700, 600172), (742, 566200), (745, 563920), (760, 552790), (848, 495425), (950, 442232), (1007, 417200), (1043, 402800), (1060, 396340), (1064, 394850), (1192, 352450), (1325, 317072), (1330, 315880), (1400, 300086), (1484, 283100), (1490, 281960), (1520, 276395), (1855, 226480), (1900, 221116), (2014, 208600), (2086, 201400), (2120, 198170), (2128, 197425), (2384, 176225), (2650, 158536), (2660, 157940), (2800, 150043), (2831, 148400), (2968, 141550), (2980, 140980), (3325, 126352), (3710, 113240), (3725, 112784), (3800, 110558), (4028, 104300), (4172, 100700), (4240, 99085), (5035, 83440), (5215, 80560), (5300, 79268), (5320, 78970), (5662, 74200), (5936, 70775), (5960, 70490), (6650, 63176), (7049, 59600), (7420, 56620), (7450, 56392), (7600, 55279), (7897, 53200), (8056, 52150), (8344, 50350), (9275, 45296), (10070, 41720), (10430, 40280), (10600, 39634), (10640, 39485), (11324, 37100), (11920, 35245), (13300, 31588), (14098, 29800), (14155, 29680), (14840, 28310), (14900, 28196), (15794, 26600), (16112, 26075), (16688, 25175), (18550, 22648), (19817, 21200), (20140, 20860)]