16798180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 41856696

約数和(自身を除く): 25058516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 281, 305, 427, 490, 562, 610, 854, 980, 1124, 1220, 1405, 1708, 1967, 2135, 2810, 2989, 3934, 4270, 5620, 5978, 7868, 8540, 9835, 11956, 13769, 14945, 17141, 19670, 27538, 29890, 34282, 39340, 55076, 59780, 68564, 68845, 85705, 119987, 137690, 171410, 239974, 275380, 342820, 479948, 599935, 839909, 1199870, 1679818, 2399740, 3359636, 4199545, 8399090, 16798180]

約数ペア:

[(1, 16798180), (2, 8399090), (4, 4199545), (5, 3359636), (7, 2399740), (10, 1679818), (14, 1199870), (20, 839909), (28, 599935), (35, 479948), (49, 342820), (61, 275380), (70, 239974), (98, 171410), (122, 137690), (140, 119987), (196, 85705), (244, 68845), (245, 68564), (281, 59780), (305, 55076), (427, 39340), (490, 34282), (562, 29890), (610, 27538), (854, 19670), (980, 17141), (1124, 14945), (1220, 13769), (1405, 11956), (1708, 9835), (1967, 8540), (2135, 7868), (2810, 5978), (2989, 5620), (3934, 4270)]