About the Number
121681680
2進数表記:111010000001011011100010000
漢数字表記:一億二千百六十八万千六百八十
素因数分解:
素因数の和:17528
約数の個数: 80
約数和(自身を含む): 390242880
約数和(自身を除く): 268561200
約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 3480, 6960, 17483, 34966, 52449, 69932, 87415, 104898, 139864, 174830, 209796, 262245, 279728, 349660, 419592, 507007, 524490, 699320, 839184, 1014014, 1048980, 1398640, 1521021, 2028028, 2097960, 2535035, 3042042, 4056056, 4195920, 5070070, 6084084, 7605105, 8112112, 10140140, 12168168, 15210210, 20280280, 24336336, 30420420, 40560560, 60840840, 121681680]
約数ペア:
[(1, 121681680), (2, 60840840), (3, 40560560), (4, 30420420), (5, 24336336), (6, 20280280), (8, 15210210), (10, 12168168), (12, 10140140), (15, 8112112), (16, 7605105), (20, 6084084), (24, 5070070), (29, 4195920), (30, 4056056), (40, 3042042), (48, 2535035), (58, 2097960), (60, 2028028), (80, 1521021), (87, 1398640), (116, 1048980), (120, 1014014), (145, 839184), (174, 699320), (232, 524490), (240, 507007), (290, 419592), (348, 349660), (435, 279728), (464, 262245), (580, 209796), (696, 174830), (870, 139864), (1160, 104898), (1392, 87415), (1740, 69932), (2320, 52449), (3480, 34966), (6960, 17483)]このpageの処理時間: 0.0780947208404541 seconds