172781840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4007}}^1$

素因数の和:4045

約数の個数: 120

約数和(自身を含む): 509913792

約数和(自身を除く): 337131952

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 1078, 1232, 1540, 1960, 2156, 2695, 3080, 3920, 4007, 4312, 5390, 6160, 8014, 8624, 10780, 16028, 20035, 21560, 28049, 32056, 40070, 43120, 44077, 56098, 64112, 80140, 88154, 112196, 140245, 160280, 176308, 196343, 220385, 224392, 280490, 308539, 320560, 352616, 392686, 440770, 448784, 560980, 617078, 705232, 785372, 881540, 981715, 1121960, 1234156, 1542695, 1570744, 1763080, 1963430, 2159773, 2243920, 2468312, 3085390, 3141488, 3526160, 3926860, 4319546, 4936624, 6170780, 7853720, 8639092, 10798865, 12341560, 15707440, 17278184, 21597730, 24683120, 34556368, 43195460, 86390920, 172781840]

約数ペア:

[(1, 172781840), (2, 86390920), (4, 43195460), (5, 34556368), (7, 24683120), (8, 21597730), (10, 17278184), (11, 15707440), (14, 12341560), (16, 10798865), (20, 8639092), (22, 7853720), (28, 6170780), (35, 4936624), (40, 4319546), (44, 3926860), (49, 3526160), (55, 3141488), (56, 3085390), (70, 2468312), (77, 2243920), (80, 2159773), (88, 1963430), (98, 1763080), (110, 1570744), (112, 1542695), (140, 1234156), (154, 1121960), (176, 981715), (196, 881540), (220, 785372), (245, 705232), (280, 617078), (308, 560980), (385, 448784), (392, 440770), (440, 392686), (490, 352616), (539, 320560), (560, 308539), (616, 280490), (770, 224392), (784, 220385), (880, 196343), (980, 176308), (1078, 160280), (1232, 140245), (1540, 112196), (1960, 88154), (2156, 80140), (2695, 64112), (3080, 56098), (3920, 44077), (4007, 43120), (4312, 40070), (5390, 32056), (6160, 28049), (8014, 21560), (8624, 20035), (10780, 16028)]