1294397500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^3\times {\mathrm{389}}^1$

素因数の和:446

約数の個数: 120

約数和(自身を含む): 3121438320

約数和(自身を除く): 1827040820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 125, 220, 242, 250, 275, 389, 484, 500, 550, 605, 625, 778, 1100, 1210, 1250, 1331, 1375, 1556, 1945, 2420, 2500, 2662, 2750, 3025, 3890, 4279, 5324, 5500, 6050, 6655, 6875, 7780, 8558, 9725, 12100, 13310, 13750, 15125, 17116, 19450, 21395, 26620, 27500, 30250, 33275, 38900, 42790, 47069, 48625, 60500, 66550, 75625, 85580, 94138, 97250, 106975, 133100, 151250, 166375, 188276, 194500, 213950, 235345, 243125, 302500, 332750, 427900, 470690, 486250, 517759, 534875, 665500, 831875, 941380, 972500, 1035518, 1069750, 1176725, 1663750, 2071036, 2139500, 2353450, 2588795, 2674375, 3327500, 4706900, 5177590, 5348750, 5883625, 10355180, 10697500, 11767250, 12943975, 23534500, 25887950, 29418125, 51775900, 58836250, 64719875, 117672500, 129439750, 258879500, 323599375, 647198750, 1294397500]

約数ペア:

[(1, 1294397500), (2, 647198750), (4, 323599375), (5, 258879500), (10, 129439750), (11, 117672500), (20, 64719875), (22, 58836250), (25, 51775900), (44, 29418125), (50, 25887950), (55, 23534500), (100, 12943975), (110, 11767250), (121, 10697500), (125, 10355180), (220, 5883625), (242, 5348750), (250, 5177590), (275, 4706900), (389, 3327500), (484, 2674375), (500, 2588795), (550, 2353450), (605, 2139500), (625, 2071036), (778, 1663750), (1100, 1176725), (1210, 1069750), (1250, 1035518), (1331, 972500), (1375, 941380), (1556, 831875), (1945, 665500), (2420, 534875), (2500, 517759), (2662, 486250), (2750, 470690), (3025, 427900), (3890, 332750), (4279, 302500), (5324, 243125), (5500, 235345), (6050, 213950), (6655, 194500), (6875, 188276), (7780, 166375), (8558, 151250), (9725, 133100), (12100, 106975), (13310, 97250), (13750, 94138), (15125, 85580), (17116, 75625), (19450, 66550), (21395, 60500), (26620, 48625), (27500, 47069), (30250, 42790), (33275, 38900)]