77923840

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:583

約数の個数: 80

約数和(自身を含む): 190278000

約数和(自身を除く): 112354160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 499, 512, 610, 640, 976, 998, 1220, 1280, 1952, 1996, 2440, 2495, 2560, 3904, 3992, 4880, 4990, 7808, 7984, 9760, 9980, 15616, 15968, 19520, 19960, 30439, 31232, 31936, 39040, 39920, 60878, 63872, 78080, 79840, 121756, 127744, 152195, 156160, 159680, 243512, 255488, 304390, 319360, 487024, 608780, 638720, 974048, 1217560, 1277440, 1948096, 2435120, 3896192, 4870240, 7792384, 9740480, 15584768, 19480960, 38961920, 77923840]

約数ペア:

[(1, 77923840), (2, 38961920), (4, 19480960), (5, 15584768), (8, 9740480), (10, 7792384), (16, 4870240), (20, 3896192), (32, 2435120), (40, 1948096), (61, 1277440), (64, 1217560), (80, 974048), (122, 638720), (128, 608780), (160, 487024), (244, 319360), (256, 304390), (305, 255488), (320, 243512), (488, 159680), (499, 156160), (512, 152195), (610, 127744), (640, 121756), (976, 79840), (998, 78080), (1220, 63872), (1280, 60878), (1952, 39920), (1996, 39040), (2440, 31936), (2495, 31232), (2560, 30439), (3904, 19960), (3992, 19520), (4880, 15968), (4990, 15616), (7808, 9980), (7984, 9760)]