20176970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 41997312

約数和(自身を除く): 21820342

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 61, 62, 97, 110, 122, 155, 194, 305, 310, 341, 485, 610, 671, 682, 970, 1067, 1342, 1705, 1891, 2134, 3007, 3355, 3410, 3782, 5335, 5917, 6014, 6710, 9455, 10670, 11834, 15035, 18910, 20801, 29585, 30070, 33077, 41602, 59170, 65087, 66154, 104005, 130174, 165385, 183427, 208010, 325435, 330770, 366854, 650870, 917135, 1834270, 2017697, 4035394, 10088485, 20176970]

約数ペア:

[(1, 20176970), (2, 10088485), (5, 4035394), (10, 2017697), (11, 1834270), (22, 917135), (31, 650870), (55, 366854), (61, 330770), (62, 325435), (97, 208010), (110, 183427), (122, 165385), (155, 130174), (194, 104005), (305, 66154), (310, 65087), (341, 59170), (485, 41602), (610, 33077), (671, 30070), (682, 29585), (970, 20801), (1067, 18910), (1342, 15035), (1705, 11834), (1891, 10670), (2134, 9455), (3007, 6710), (3355, 6014), (3410, 5917), (3782, 5335)]