66438800

素因数分解:

$2^4\times 5^2\times {\mathrm{163}}^1\times {\mathrm{1019}}^1$

素因数の和:1200

約数の個数: 60

約数和(自身を含む): 160756080

約数和(自身を除く): 94317280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 163, 200, 326, 400, 652, 815, 1019, 1304, 1630, 2038, 2608, 3260, 4075, 4076, 5095, 6520, 8150, 8152, 10190, 13040, 16300, 16304, 20380, 25475, 32600, 40760, 50950, 65200, 81520, 101900, 166097, 203800, 332194, 407600, 664388, 830485, 1328776, 1660970, 2657552, 3321940, 4152425, 6643880, 8304850, 13287760, 16609700, 33219400, 66438800]

約数ペア:

[(1, 66438800), (2, 33219400), (4, 16609700), (5, 13287760), (8, 8304850), (10, 6643880), (16, 4152425), (20, 3321940), (25, 2657552), (40, 1660970), (50, 1328776), (80, 830485), (100, 664388), (163, 407600), (200, 332194), (326, 203800), (400, 166097), (652, 101900), (815, 81520), (1019, 65200), (1304, 50950), (1630, 40760), (2038, 32600), (2608, 25475), (3260, 20380), (4075, 16304), (4076, 16300), (5095, 13040), (6520, 10190), (8150, 8152)]