1311451640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1\times {\mathrm{1489}}^1$

素因数の和:1824

約数の個数: 64

約数和(自身を含む): 2996330400

約数和(自身を除く): 1684878760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 227, 388, 454, 485, 776, 908, 970, 1135, 1489, 1816, 1940, 2270, 2978, 3880, 4540, 5956, 7445, 9080, 11912, 14890, 22019, 29780, 44038, 59560, 88076, 110095, 144433, 176152, 220190, 288866, 338003, 440380, 577732, 676006, 722165, 880760, 1155464, 1352012, 1444330, 1690015, 2704024, 2888660, 3380030, 5777320, 6760060, 13520120, 32786291, 65572582, 131145164, 163931455, 262290328, 327862910, 655725820, 1311451640]

約数ペア:

[(1, 1311451640), (2, 655725820), (4, 327862910), (5, 262290328), (8, 163931455), (10, 131145164), (20, 65572582), (40, 32786291), (97, 13520120), (194, 6760060), (227, 5777320), (388, 3380030), (454, 2888660), (485, 2704024), (776, 1690015), (908, 1444330), (970, 1352012), (1135, 1155464), (1489, 880760), (1816, 722165), (1940, 676006), (2270, 577732), (2978, 440380), (3880, 338003), (4540, 288866), (5956, 220190), (7445, 176152), (9080, 144433), (11912, 110095), (14890, 88076), (22019, 59560), (29780, 44038)]