306904960

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^2\times {\mathrm{499}}^1$

素因数の和:580

約数の個数: 96

約数和(自身を含む): 759645000

約数和(自身を除く): 452740040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 499, 620, 640, 961, 992, 998, 1240, 1922, 1984, 1996, 2480, 2495, 3844, 3968, 3992, 4805, 4960, 4990, 7688, 7984, 9610, 9920, 9980, 15376, 15469, 15968, 19220, 19840, 19960, 30752, 30938, 31936, 38440, 39920, 61504, 61876, 63872, 76880, 77345, 79840, 123008, 123752, 153760, 154690, 159680, 247504, 307520, 309380, 319360, 479539, 495008, 615040, 618760, 959078, 990016, 1237520, 1918156, 1980032, 2397695, 2475040, 3836312, 4795390, 4950080, 7672624, 9590780, 9900160, 15345248, 19181560, 30690496, 38363120, 61380992, 76726240, 153452480, 306904960]

約数ペア:

[(1, 306904960), (2, 153452480), (4, 76726240), (5, 61380992), (8, 38363120), (10, 30690496), (16, 19181560), (20, 15345248), (31, 9900160), (32, 9590780), (40, 7672624), (62, 4950080), (64, 4795390), (80, 3836312), (124, 2475040), (128, 2397695), (155, 1980032), (160, 1918156), (248, 1237520), (310, 990016), (320, 959078), (496, 618760), (499, 615040), (620, 495008), (640, 479539), (961, 319360), (992, 309380), (998, 307520), (1240, 247504), (1922, 159680), (1984, 154690), (1996, 153760), (2480, 123752), (2495, 123008), (3844, 79840), (3968, 77345), (3992, 76880), (4805, 63872), (4960, 61876), (4990, 61504), (7688, 39920), (7984, 38440), (9610, 31936), (9920, 30938), (9980, 30752), (15376, 19960), (15469, 19840), (15968, 19220)]