78340000

素因数分解:

$2^5\times 5^4\times {\mathrm{3917}}^1$

素因数の和:3947

約数の個数: 60

約数和(自身を含む): 192777354

約数和(自身を除く): 114437354

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 3917, 4000, 5000, 7834, 10000, 15668, 19585, 20000, 31336, 39170, 62672, 78340, 97925, 125344, 156680, 195850, 313360, 391700, 489625, 626720, 783400, 979250, 1566800, 1958500, 2448125, 3133600, 3917000, 4896250, 7834000, 9792500, 15668000, 19585000, 39170000, 78340000]

約数ペア:

[(1, 78340000), (2, 39170000), (4, 19585000), (5, 15668000), (8, 9792500), (10, 7834000), (16, 4896250), (20, 3917000), (25, 3133600), (32, 2448125), (40, 1958500), (50, 1566800), (80, 979250), (100, 783400), (125, 626720), (160, 489625), (200, 391700), (250, 313360), (400, 195850), (500, 156680), (625, 125344), (800, 97925), (1000, 78340), (1250, 62672), (2000, 39170), (2500, 31336), (3917, 20000), (4000, 19585), (5000, 15668), (7834, 10000)]