128510460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54919}}^1$

素因数の和:54947

約数の個数: 72

約数和(自身を含む): 419808480

約数和(自身を除く): 291298020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 54919, 109838, 164757, 219676, 274595, 329514, 494271, 549190, 659028, 713947, 823785, 988542, 1098380, 1427894, 1647570, 1977084, 2141841, 2471355, 2855788, 3295140, 3569735, 4283682, 4942710, 6425523, 7139470, 8567364, 9885420, 10709205, 12851046, 14278940, 21418410, 25702092, 32127615, 42836820, 64255230, 128510460]

約数ペア:

[(1, 128510460), (2, 64255230), (3, 42836820), (4, 32127615), (5, 25702092), (6, 21418410), (9, 14278940), (10, 12851046), (12, 10709205), (13, 9885420), (15, 8567364), (18, 7139470), (20, 6425523), (26, 4942710), (30, 4283682), (36, 3569735), (39, 3295140), (45, 2855788), (52, 2471355), (60, 2141841), (65, 1977084), (78, 1647570), (90, 1427894), (117, 1098380), (130, 988542), (156, 823785), (180, 713947), (195, 659028), (234, 549190), (260, 494271), (390, 329514), (468, 274595), (585, 219676), (780, 164757), (1170, 109838), (2340, 54919)]