2001078903890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1487}}^1\times {\mathrm{643883}}^1$

素因数の和:645407

約数の個数: 64

約数和(自身を含む): 4138989373440

約数和(自身を除く): 2137910469550

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 1487, 2090, 2974, 7435, 14870, 16357, 28253, 32714, 56506, 81785, 141265, 163570, 282530, 310783, 621566, 643883, 1287766, 1553915, 3107830, 3219415, 6438830, 7082713, 12233777, 14165426, 24467554, 35413565, 61168885, 70827130, 122337770, 134571547, 269143094, 672857735, 957454021, 1345715470, 1914908042, 4787270105, 9574540210, 10531994231, 18191626399, 21063988462, 36383252798, 52659971155, 90958131995, 105319942310, 181916263990, 200107890389, 400215780778, 1000539451945, 2001078903890]

約数ペア:

[(1, 2001078903890), (2, 1000539451945), (5, 400215780778), (10, 200107890389), (11, 181916263990), (19, 105319942310), (22, 90958131995), (38, 52659971155), (55, 36383252798), (95, 21063988462), (110, 18191626399), (190, 10531994231), (209, 9574540210), (418, 4787270105), (1045, 1914908042), (1487, 1345715470), (2090, 957454021), (2974, 672857735), (7435, 269143094), (14870, 134571547), (16357, 122337770), (28253, 70827130), (32714, 61168885), (56506, 35413565), (81785, 24467554), (141265, 14165426), (163570, 12233777), (282530, 7082713), (310783, 6438830), (621566, 3219415), (643883, 3107830), (1287766, 1553915)]