81970000

素因数分解:

$2^4\times 5^4\times 7^1\times {\mathrm{1171}}^1$

素因数の和:1206

約数の個数: 100

約数和(自身を含む): 227002336

約数和(自身を除く): 145032336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 625, 700, 875, 1000, 1171, 1250, 1400, 1750, 2000, 2342, 2500, 2800, 3500, 4375, 4684, 5000, 5855, 7000, 8197, 8750, 9368, 10000, 11710, 14000, 16394, 17500, 18736, 23420, 29275, 32788, 35000, 40985, 46840, 58550, 65576, 70000, 81970, 93680, 117100, 131152, 146375, 163940, 204925, 234200, 292750, 327880, 409850, 468400, 585500, 655760, 731875, 819700, 1024625, 1171000, 1463750, 1639400, 2049250, 2342000, 2927500, 3278800, 4098500, 5123125, 5855000, 8197000, 10246250, 11710000, 16394000, 20492500, 40985000, 81970000]

約数ペア:

[(1, 81970000), (2, 40985000), (4, 20492500), (5, 16394000), (7, 11710000), (8, 10246250), (10, 8197000), (14, 5855000), (16, 5123125), (20, 4098500), (25, 3278800), (28, 2927500), (35, 2342000), (40, 2049250), (50, 1639400), (56, 1463750), (70, 1171000), (80, 1024625), (100, 819700), (112, 731875), (125, 655760), (140, 585500), (175, 468400), (200, 409850), (250, 327880), (280, 292750), (350, 234200), (400, 204925), (500, 163940), (560, 146375), (625, 131152), (700, 117100), (875, 93680), (1000, 81970), (1171, 70000), (1250, 65576), (1400, 58550), (1750, 46840), (2000, 40985), (2342, 35000), (2500, 32788), (2800, 29275), (3500, 23420), (4375, 18736), (4684, 17500), (5000, 16394), (5855, 14000), (7000, 11710), (8197, 10000), (8750, 9368)]