About the Number

128000208

128000207 ← → 128000209

2進数表記:111101000010010000011010000

漢数字表記:一億二千八百万二百八

素因数分解:

2 4 × 3 1 × 7 1 × 17 1 × 22409 1

素因数の和:22444
約数の個数: 80
約数和(自身を含む): 400152960
約数和(自身を除く): 272152752

約数列:
[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 34, 42, 48, 51, 56, 68, 84, 102, 112, 119, 136, 168, 204, 238, 272, 336, 357, 408, 476, 714, 816, 952, 1428, 1904, 2856, 5712, 22409, 44818, 67227, 89636, 134454, 156863, 179272, 268908, 313726, 358544, 380953, 470589, 537816, 627452, 761906, 941178, 1075632, 1142859, 1254904, 1523812, 1882356, 2285718, 2509808, 2666671, 3047624, 3764712, 4571436, 5333342, 6095248, 7529424, 8000013, 9142872, 10666684, 16000026, 18285744, 21333368, 32000052, 42666736, 64000104, 128000208]

約数ペア:
[(1, 128000208), (2, 64000104), (3, 42666736), (4, 32000052), (6, 21333368), (7, 18285744), (8, 16000026), (12, 10666684), (14, 9142872), (16, 8000013), (17, 7529424), (21, 6095248), (24, 5333342), (28, 4571436), (34, 3764712), (42, 3047624), (48, 2666671), (51, 2509808), (56, 2285718), (68, 1882356), (84, 1523812), (102, 1254904), (112, 1142859), (119, 1075632), (136, 941178), (168, 761906), (204, 627452), (238, 537816), (272, 470589), (336, 380953), (357, 358544), (408, 313726), (476, 268908), (714, 179272), (816, 156863), (952, 134454), (1428, 89636), (1904, 67227), (2856, 44818), (5712, 22409)]

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