About the Number
128408490
2進数表記:111101001110101101110101010
漢数字表記:一億二千八百四十万八千四百九十
素因数分解:
素因数の和:7578
約数の個数: 96
約数和(自身を含む): 395740800
約数和(自身を除く): 267332310
約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 243, 270, 315, 378, 405, 486, 567, 630, 810, 945, 1134, 1215, 1701, 1890, 2430, 2835, 3402, 5670, 7549, 8505, 15098, 17010, 22647, 37745, 45294, 52843, 67941, 75490, 105686, 113235, 135882, 158529, 203823, 226470, 264215, 317058, 339705, 407646, 475587, 528430, 611469, 679410, 792645, 951174, 1019115, 1222938, 1426761, 1585290, 1834407, 2038230, 2377935, 2853522, 3057345, 3668814, 4280283, 4755870, 6114690, 7133805, 8560566, 9172035, 12840849, 14267610, 18344070, 21401415, 25681698, 42802830, 64204245, 128408490]
約数ペア:
[(1, 128408490), (2, 64204245), (3, 42802830), (5, 25681698), (6, 21401415), (7, 18344070), (9, 14267610), (10, 12840849), (14, 9172035), (15, 8560566), (18, 7133805), (21, 6114690), (27, 4755870), (30, 4280283), (35, 3668814), (42, 3057345), (45, 2853522), (54, 2377935), (63, 2038230), (70, 1834407), (81, 1585290), (90, 1426761), (105, 1222938), (126, 1019115), (135, 951174), (162, 792645), (189, 679410), (210, 611469), (243, 528430), (270, 475587), (315, 407646), (378, 339705), (405, 317058), (486, 264215), (567, 226470), (630, 203823), (810, 158529), (945, 135882), (1134, 113235), (1215, 105686), (1701, 75490), (1890, 67941), (2430, 52843), (2835, 45294), (3402, 37745), (5670, 22647), (7549, 17010), (8505, 15098)]このpageの処理時間: 0.016210556030273438 seconds