131220900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{691}}^1$

素因数の和:922

約数の個数: 108

約数和(自身を含む): 413851984

約数和(自身を除く): 282631084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 211, 225, 300, 422, 450, 633, 691, 844, 900, 1055, 1266, 1382, 1899, 2073, 2110, 2532, 2764, 3165, 3455, 3798, 4146, 4220, 5275, 6219, 6330, 6910, 7596, 8292, 9495, 10365, 10550, 12438, 12660, 13820, 15825, 17275, 18990, 20730, 21100, 24876, 31095, 31650, 34550, 37980, 41460, 47475, 51825, 62190, 63300, 69100, 94950, 103650, 124380, 145801, 155475, 189900, 207300, 291602, 310950, 437403, 583204, 621900, 729005, 874806, 1312209, 1458010, 1749612, 2187015, 2624418, 2916020, 3645025, 4374030, 5248836, 6561045, 7290050, 8748060, 10935075, 13122090, 14580100, 21870150, 26244180, 32805225, 43740300, 65610450, 131220900]

約数ペア:

[(1, 131220900), (2, 65610450), (3, 43740300), (4, 32805225), (5, 26244180), (6, 21870150), (9, 14580100), (10, 13122090), (12, 10935075), (15, 8748060), (18, 7290050), (20, 6561045), (25, 5248836), (30, 4374030), (36, 3645025), (45, 2916020), (50, 2624418), (60, 2187015), (75, 1749612), (90, 1458010), (100, 1312209), (150, 874806), (180, 729005), (211, 621900), (225, 583204), (300, 437403), (422, 310950), (450, 291602), (633, 207300), (691, 189900), (844, 155475), (900, 145801), (1055, 124380), (1266, 103650), (1382, 94950), (1899, 69100), (2073, 63300), (2110, 62190), (2532, 51825), (2764, 47475), (3165, 41460), (3455, 37980), (3798, 34550), (4146, 31650), (4220, 31095), (5275, 24876), (6219, 21100), (6330, 20730), (6910, 18990), (7596, 17275), (8292, 15825), (9495, 13820), (10365, 12660), (10550, 12438)]