78421600

素因数分解:

$2^5\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1607}}^1$

素因数の和:1688

約数の個数: 72

約数和(自身を含む): 194706288

約数和(自身を除く): 116284688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 80, 100, 122, 160, 200, 244, 305, 400, 488, 610, 800, 976, 1220, 1525, 1607, 1952, 2440, 3050, 3214, 4880, 6100, 6428, 8035, 9760, 12200, 12856, 16070, 24400, 25712, 32140, 40175, 48800, 51424, 64280, 80350, 98027, 128560, 160700, 196054, 257120, 321400, 392108, 490135, 642800, 784216, 980270, 1285600, 1568432, 1960540, 2450675, 3136864, 3921080, 4901350, 7842160, 9802700, 15684320, 19605400, 39210800, 78421600]

約数ペア:

[(1, 78421600), (2, 39210800), (4, 19605400), (5, 15684320), (8, 9802700), (10, 7842160), (16, 4901350), (20, 3921080), (25, 3136864), (32, 2450675), (40, 1960540), (50, 1568432), (61, 1285600), (80, 980270), (100, 784216), (122, 642800), (160, 490135), (200, 392108), (244, 321400), (305, 257120), (400, 196054), (488, 160700), (610, 128560), (800, 98027), (976, 80350), (1220, 64280), (1525, 51424), (1607, 48800), (1952, 40175), (2440, 32140), (3050, 25712), (3214, 24400), (4880, 16070), (6100, 12856), (6428, 12200), (8035, 9760)]