20744100

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:236

約数の個数: 180

約数和(自身を含む): 72784404

約数和(自身を除く): 52040304

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 75, 78, 81, 90, 100, 108, 117, 130, 135, 150, 156, 162, 180, 195, 197, 225, 234, 260, 270, 300, 324, 325, 351, 390, 394, 405, 450, 468, 540, 585, 591, 650, 675, 702, 780, 788, 810, 900, 975, 985, 1053, 1170, 1182, 1300, 1350, 1404, 1620, 1755, 1773, 1950, 1970, 2025, 2106, 2340, 2364, 2561, 2700, 2925, 2955, 3510, 3546, 3900, 3940, 4050, 4212, 4925, 5122, 5265, 5319, 5850, 5910, 7020, 7092, 7683, 8100, 8775, 8865, 9850, 10244, 10530, 10638, 11700, 11820, 12805, 14775, 15366, 15957, 17550, 17730, 19700, 21060, 21276, 23049, 25610, 26325, 26595, 29550, 30732, 31914, 35100, 35460, 38415, 44325, 46098, 51220, 52650, 53190, 59100, 63828, 64025, 69147, 76830, 79785, 88650, 92196, 105300, 106380, 115245, 128050, 132975, 138294, 153660, 159570, 177300, 192075, 207441, 230490, 256100, 265950, 276588, 319140, 345735, 384150, 398925, 414882, 460980, 531900, 576225, 691470, 768300, 797850, 829764, 1037205, 1152450, 1382940, 1595700, 1728675, 2074410, 2304900, 3457350, 4148820, 5186025, 6914700, 10372050, 20744100]

約数ペア:

[(1, 20744100), (2, 10372050), (3, 6914700), (4, 5186025), (5, 4148820), (6, 3457350), (9, 2304900), (10, 2074410), (12, 1728675), (13, 1595700), (15, 1382940), (18, 1152450), (20, 1037205), (25, 829764), (26, 797850), (27, 768300), (30, 691470), (36, 576225), (39, 531900), (45, 460980), (50, 414882), (52, 398925), (54, 384150), (60, 345735), (65, 319140), (75, 276588), (78, 265950), (81, 256100), (90, 230490), (100, 207441), (108, 192075), (117, 177300), (130, 159570), (135, 153660), (150, 138294), (156, 132975), (162, 128050), (180, 115245), (195, 106380), (197, 105300), (225, 92196), (234, 88650), (260, 79785), (270, 76830), (300, 69147), (324, 64025), (325, 63828), (351, 59100), (390, 53190), (394, 52650), (405, 51220), (450, 46098), (468, 44325), (540, 38415), (585, 35460), (591, 35100), (650, 31914), (675, 30732), (702, 29550), (780, 26595), (788, 26325), (810, 25610), (900, 23049), (975, 21276), (985, 21060), (1053, 19700), (1170, 17730), (1182, 17550), (1300, 15957), (1350, 15366), (1404, 14775), (1620, 12805), (1755, 11820), (1773, 11700), (1950, 10638), (1970, 10530), (2025, 10244), (2106, 9850), (2340, 8865), (2364, 8775), (2561, 8100), (2700, 7683), (2925, 7092), (2955, 7020), (3510, 5910), (3546, 5850), (3900, 5319), (3940, 5265), (4050, 5122), (4212, 4925)]