81663680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{36457}}^1$

素因数の和:36481

約数の個数: 56

約数和(自身を含む): 222247968

約数和(自身を除く): 140584288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 36457, 72914, 145828, 182285, 255199, 291656, 364570, 510398, 583312, 729140, 1020796, 1166624, 1275995, 1458280, 2041592, 2333248, 2551990, 2916560, 4083184, 5103980, 5833120, 8166368, 10207960, 11666240, 16332736, 20415920, 40831840, 81663680]

約数ペア:

[(1, 81663680), (2, 40831840), (4, 20415920), (5, 16332736), (7, 11666240), (8, 10207960), (10, 8166368), (14, 5833120), (16, 5103980), (20, 4083184), (28, 2916560), (32, 2551990), (35, 2333248), (40, 2041592), (56, 1458280), (64, 1275995), (70, 1166624), (80, 1020796), (112, 729140), (140, 583312), (160, 510398), (224, 364570), (280, 291656), (320, 255199), (448, 182285), (560, 145828), (1120, 72914), (2240, 36457)]