78871420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{2011}}^1$

素因数の和:2110

約数の個数: 48

約数和(自身を含む): 173402208

約数和(自身を除く): 94530788

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 530, 740, 1060, 1961, 2011, 3922, 4022, 7844, 8044, 9805, 10055, 19610, 20110, 39220, 40220, 74407, 106583, 148814, 213166, 297628, 372035, 426332, 532915, 744070, 1065830, 1488140, 2131660, 3943571, 7887142, 15774284, 19717855, 39435710, 78871420]

約数ペア:

[(1, 78871420), (2, 39435710), (4, 19717855), (5, 15774284), (10, 7887142), (20, 3943571), (37, 2131660), (53, 1488140), (74, 1065830), (106, 744070), (148, 532915), (185, 426332), (212, 372035), (265, 297628), (370, 213166), (530, 148814), (740, 106583), (1060, 74407), (1961, 40220), (2011, 39220), (3922, 20110), (4022, 19610), (7844, 10055), (8044, 9805)]