20338890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:476

約数の個数: 96

約数和(自身を含む): 57915648

約数和(自身を除く): 37576758

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 121, 130, 143, 165, 195, 242, 286, 330, 363, 390, 429, 431, 605, 715, 726, 858, 862, 1210, 1293, 1430, 1573, 1815, 2145, 2155, 2586, 3146, 3630, 4290, 4310, 4719, 4741, 5603, 6465, 7865, 9438, 9482, 11206, 12930, 14223, 15730, 16809, 23595, 23705, 28015, 28446, 33618, 47190, 47410, 52151, 56030, 61633, 71115, 84045, 104302, 123266, 142230, 156453, 168090, 184899, 260755, 308165, 312906, 369798, 521510, 616330, 677963, 782265, 924495, 1355926, 1564530, 1848990, 2033889, 3389815, 4067778, 6779630, 10169445, 20338890]

約数ペア:

[(1, 20338890), (2, 10169445), (3, 6779630), (5, 4067778), (6, 3389815), (10, 2033889), (11, 1848990), (13, 1564530), (15, 1355926), (22, 924495), (26, 782265), (30, 677963), (33, 616330), (39, 521510), (55, 369798), (65, 312906), (66, 308165), (78, 260755), (110, 184899), (121, 168090), (130, 156453), (143, 142230), (165, 123266), (195, 104302), (242, 84045), (286, 71115), (330, 61633), (363, 56030), (390, 52151), (429, 47410), (431, 47190), (605, 33618), (715, 28446), (726, 28015), (858, 23705), (862, 23595), (1210, 16809), (1293, 15730), (1430, 14223), (1573, 12930), (1815, 11206), (2145, 9482), (2155, 9438), (2586, 7865), (3146, 6465), (3630, 5603), (4290, 4741), (4310, 4719)]