128015680

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30773}}^1$

素因数の和:30803

約数の個数: 56

約数和(自身を含む): 328297032

約数和(自身を除く): 200281352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 30773, 61546, 123092, 153865, 246184, 307730, 400049, 492368, 615460, 800098, 984736, 1230920, 1600196, 1969472, 2000245, 2461840, 3200392, 4000490, 4923680, 6400784, 8000980, 9847360, 12801568, 16001960, 25603136, 32003920, 64007840, 128015680]

約数ペア:

[(1, 128015680), (2, 64007840), (4, 32003920), (5, 25603136), (8, 16001960), (10, 12801568), (13, 9847360), (16, 8000980), (20, 6400784), (26, 4923680), (32, 4000490), (40, 3200392), (52, 2461840), (64, 2000245), (65, 1969472), (80, 1600196), (104, 1230920), (130, 984736), (160, 800098), (208, 615460), (260, 492368), (320, 400049), (416, 307730), (520, 246184), (832, 153865), (1040, 123092), (2080, 61546), (4160, 30773)]