128781900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1223}}^1$

素因数の和:1262

約数の個数: 180

約数和(自身を含む): 449939952

約数和(自身を除く): 321158052

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, 225, 234, 260, 270, 300, 324, 325, 351, 390, 405, 450, 468, 540, 585, 650, 675, 702, 780, 810, 900, 975, 1053, 1170, 1223, 1300, 1350, 1404, 1620, 1755, 1950, 2025, 2106, 2340, 2446, 2700, 2925, 3510, 3669, 3900, 4050, 4212, 4892, 5265, 5850, 6115, 7020, 7338, 8100, 8775, 10530, 11007, 11700, 12230, 14676, 15899, 17550, 18345, 21060, 22014, 24460, 26325, 30575, 31798, 33021, 35100, 36690, 44028, 47697, 52650, 55035, 61150, 63596, 66042, 73380, 79495, 91725, 95394, 99063, 105300, 110070, 122300, 132084, 143091, 158990, 165105, 183450, 190788, 198126, 220140, 238485, 275175, 286182, 317980, 330210, 366900, 396252, 397475, 429273, 476970, 495315, 550350, 572364, 660420, 715455, 794950, 825525, 858546, 953940, 990630, 1100700, 1192425, 1287819, 1430910, 1589900, 1651050, 1717092, 1981260, 2146365, 2384850, 2476575, 2575638, 2861820, 3302100, 3577275, 4292730, 4769700, 4953150, 5151276, 6439095, 7154550, 8585460, 9906300, 10731825, 12878190, 14309100, 21463650, 25756380, 32195475, 42927300, 64390950, 128781900]

約数ペア:

[(1, 128781900), (2, 64390950), (3, 42927300), (4, 32195475), (5, 25756380), (6, 21463650), (9, 14309100), (10, 12878190), (12, 10731825), (13, 9906300), (15, 8585460), (18, 7154550), (20, 6439095), (25, 5151276), (26, 4953150), (27, 4769700), (30, 4292730), (36, 3577275), (39, 3302100), (45, 2861820), (50, 2575638), (52, 2476575), (54, 2384850), (60, 2146365), (65, 1981260), (75, 1717092), (78, 1651050), (81, 1589900), (90, 1430910), (100, 1287819), (108, 1192425), (117, 1100700), (130, 990630), (135, 953940), (150, 858546), (156, 825525), (162, 794950), (180, 715455), (195, 660420), (225, 572364), (234, 550350), (260, 495315), (270, 476970), (300, 429273), (324, 397475), (325, 396252), (351, 366900), (390, 330210), (405, 317980), (450, 286182), (468, 275175), (540, 238485), (585, 220140), (650, 198126), (675, 190788), (702, 183450), (780, 165105), (810, 158990), (900, 143091), (975, 132084), (1053, 122300), (1170, 110070), (1223, 105300), (1300, 99063), (1350, 95394), (1404, 91725), (1620, 79495), (1755, 73380), (1950, 66042), (2025, 63596), (2106, 61150), (2340, 55035), (2446, 52650), (2700, 47697), (2925, 44028), (3510, 36690), (3669, 35100), (3900, 33021), (4050, 31798), (4212, 30575), (4892, 26325), (5265, 24460), (5850, 22014), (6115, 21060), (7020, 18345), (7338, 17550), (8100, 15899), (8775, 14676), (10530, 12230), (11007, 11700)]