21699208400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2855159}}^1$

素因数の和:2855196

約数の個数: 60

約数和(自身を含む): 54876175200

約数和(自身を除く): 33176966800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 7600, 2855159, 5710318, 11420636, 14275795, 22841272, 28551590, 45682544, 54248021, 57103180, 71378975, 108496042, 114206360, 142757950, 216992084, 228412720, 271240105, 285515900, 433984168, 542480210, 571031800, 867968336, 1084960420, 1142063600, 1356200525, 2169920840, 2712401050, 4339841680, 5424802100, 10849604200, 21699208400]

約数ペア:

[(1, 21699208400), (2, 10849604200), (4, 5424802100), (5, 4339841680), (8, 2712401050), (10, 2169920840), (16, 1356200525), (19, 1142063600), (20, 1084960420), (25, 867968336), (38, 571031800), (40, 542480210), (50, 433984168), (76, 285515900), (80, 271240105), (95, 228412720), (100, 216992084), (152, 142757950), (190, 114206360), (200, 108496042), (304, 71378975), (380, 57103180), (400, 54248021), (475, 45682544), (760, 28551590), (950, 22841272), (1520, 14275795), (1900, 11420636), (3800, 5710318), (7600, 2855159)]