21074611540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{1019}}^1$

素因数の和:1369

約数の個数: 96

約数和(自身を含む): 45804528000

約数和(自身を除く): 24729916460

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 109, 179, 212, 218, 265, 358, 436, 530, 545, 716, 895, 1019, 1060, 1090, 1790, 2038, 2180, 3580, 4076, 5095, 5777, 9487, 10190, 11554, 18974, 19511, 20380, 23108, 28885, 37948, 39022, 47435, 54007, 57770, 78044, 94870, 97555, 108014, 111071, 115540, 182401, 189740, 195110, 216028, 222142, 270035, 364802, 390220, 444284, 540070, 555355, 729604, 912005, 1034083, 1080140, 1110710, 1824010, 2068166, 2221420, 3648020, 4136332, 5170415, 5886763, 9667253, 10340830, 11773526, 19334506, 19881709, 20681660, 23547052, 29433815, 38669012, 39763418, 48336265, 58867630, 79526836, 96672530, 99408545, 117735260, 193345060, 198817090, 397634180, 1053730577, 2107461154, 4214922308, 5268652885, 10537305770, 21074611540]

約数ペア:

[(1, 21074611540), (2, 10537305770), (4, 5268652885), (5, 4214922308), (10, 2107461154), (20, 1053730577), (53, 397634180), (106, 198817090), (109, 193345060), (179, 117735260), (212, 99408545), (218, 96672530), (265, 79526836), (358, 58867630), (436, 48336265), (530, 39763418), (545, 38669012), (716, 29433815), (895, 23547052), (1019, 20681660), (1060, 19881709), (1090, 19334506), (1790, 11773526), (2038, 10340830), (2180, 9667253), (3580, 5886763), (4076, 5170415), (5095, 4136332), (5777, 3648020), (9487, 2221420), (10190, 2068166), (11554, 1824010), (18974, 1110710), (19511, 1080140), (20380, 1034083), (23108, 912005), (28885, 729604), (37948, 555355), (39022, 540070), (47435, 444284), (54007, 390220), (57770, 364802), (78044, 270035), (94870, 222142), (97555, 216028), (108014, 195110), (111071, 189740), (115540, 182401)]