20074868

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 42453600

約数和(自身を除く): 22378732

約数列:

[1, 2, 4, 11, 19, 22, 37, 38, 44, 59, 74, 76, 118, 121, 148, 209, 236, 242, 407, 418, 484, 649, 703, 814, 836, 1121, 1298, 1406, 1628, 2183, 2242, 2299, 2596, 2812, 4366, 4477, 4484, 4598, 7139, 7733, 8732, 8954, 9196, 12331, 14278, 15466, 17908, 24013, 24662, 28556, 30932, 41477, 48026, 49324, 82954, 85063, 96052, 135641, 165908, 170126, 264143, 271282, 340252, 456247, 528286, 542564, 912494, 1056572, 1824988, 5018717, 10037434, 20074868]

約数ペア:

[(1, 20074868), (2, 10037434), (4, 5018717), (11, 1824988), (19, 1056572), (22, 912494), (37, 542564), (38, 528286), (44, 456247), (59, 340252), (74, 271282), (76, 264143), (118, 170126), (121, 165908), (148, 135641), (209, 96052), (236, 85063), (242, 82954), (407, 49324), (418, 48026), (484, 41477), (649, 30932), (703, 28556), (814, 24662), (836, 24013), (1121, 17908), (1298, 15466), (1406, 14278), (1628, 12331), (2183, 9196), (2242, 8954), (2299, 8732), (2596, 7733), (2812, 7139), (4366, 4598), (4477, 4484)]