18822740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 26900140

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 29, 34, 46, 58, 68, 83, 85, 92, 115, 116, 145, 166, 170, 230, 290, 332, 340, 391, 415, 460, 493, 580, 667, 782, 830, 986, 1334, 1411, 1564, 1660, 1909, 1955, 1972, 2407, 2465, 2668, 2822, 3335, 3818, 3910, 4814, 4930, 5644, 6670, 7055, 7636, 7820, 9545, 9628, 9860, 11339, 12035, 13340, 14110, 19090, 22678, 24070, 28220, 32453, 38180, 40919, 45356, 48140, 55361, 56695, 64906, 81838, 110722, 113390, 129812, 162265, 163676, 204595, 221444, 226780, 276805, 324530, 409190, 553610, 649060, 818380, 941137, 1107220, 1882274, 3764548, 4705685, 9411370, 18822740]

約数ペア:

[(1, 18822740), (2, 9411370), (4, 4705685), (5, 3764548), (10, 1882274), (17, 1107220), (20, 941137), (23, 818380), (29, 649060), (34, 553610), (46, 409190), (58, 324530), (68, 276805), (83, 226780), (85, 221444), (92, 204595), (115, 163676), (116, 162265), (145, 129812), (166, 113390), (170, 110722), (230, 81838), (290, 64906), (332, 56695), (340, 55361), (391, 48140), (415, 45356), (460, 40919), (493, 38180), (580, 32453), (667, 28220), (782, 24070), (830, 22678), (986, 19090), (1334, 14110), (1411, 13340), (1564, 12035), (1660, 11339), (1909, 9860), (1955, 9628), (1972, 9545), (2407, 7820), (2465, 7636), (2668, 7055), (2822, 6670), (3335, 5644), (3818, 4930), (3910, 4814)]