2028077980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 4440965760

約数和(自身を除く): 2412887780

約数列:

[1, 2, 4, 5, 10, 20, 61, 101, 109, 122, 151, 202, 218, 244, 302, 305, 404, 436, 505, 545, 604, 610, 755, 1010, 1090, 1220, 1510, 2020, 2180, 3020, 6161, 6649, 9211, 11009, 12322, 13298, 15251, 16459, 18422, 22018, 24644, 26596, 30502, 30805, 32918, 33245, 36844, 44036, 46055, 55045, 61004, 61610, 65836, 66490, 76255, 82295, 92110, 110090, 123220, 132980, 152510, 164590, 184220, 220180, 305020, 329180, 671549, 930311, 1003999, 1343098, 1662359, 1860622, 2007998, 2686196, 3324718, 3357745, 3721244, 4015996, 4651555, 5019995, 6649436, 6715490, 8311795, 9303110, 10039990, 13430980, 16623590, 18606220, 20079980, 33247180, 101403899, 202807798, 405615596, 507019495, 1014038990, 2028077980]

約数ペア:

[(1, 2028077980), (2, 1014038990), (4, 507019495), (5, 405615596), (10, 202807798), (20, 101403899), (61, 33247180), (101, 20079980), (109, 18606220), (122, 16623590), (151, 13430980), (202, 10039990), (218, 9303110), (244, 8311795), (302, 6715490), (305, 6649436), (404, 5019995), (436, 4651555), (505, 4015996), (545, 3721244), (604, 3357745), (610, 3324718), (755, 2686196), (1010, 2007998), (1090, 1860622), (1220, 1662359), (1510, 1343098), (2020, 1003999), (2180, 930311), (3020, 671549), (6161, 329180), (6649, 305020), (9211, 220180), (11009, 184220), (12322, 164590), (13298, 152510), (15251, 132980), (16459, 123220), (18422, 110090), (22018, 92110), (24644, 82295), (26596, 76255), (30502, 66490), (30805, 65836), (32918, 61610), (33245, 61004), (36844, 55045), (44036, 46055)]