128006800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{16843}}^1$

素因数の和:16880

約数の個数: 60

約数和(自身を含む): 323741680

約数和(自身を除く): 195734880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 7600, 16843, 33686, 67372, 84215, 134744, 168430, 269488, 320017, 336860, 421075, 640034, 673720, 842150, 1280068, 1347440, 1600085, 1684300, 2560136, 3200170, 3368600, 5120272, 6400340, 6737200, 8000425, 12800680, 16000850, 25601360, 32001700, 64003400, 128006800]

約数ペア:

[(1, 128006800), (2, 64003400), (4, 32001700), (5, 25601360), (8, 16000850), (10, 12800680), (16, 8000425), (19, 6737200), (20, 6400340), (25, 5120272), (38, 3368600), (40, 3200170), (50, 2560136), (76, 1684300), (80, 1600085), (95, 1347440), (100, 1280068), (152, 842150), (190, 673720), (200, 640034), (304, 421075), (380, 336860), (400, 320017), (475, 269488), (760, 168430), (950, 134744), (1520, 84215), (1900, 67372), (3800, 33686), (7600, 16843)]