About the Number

728021280

728021279 ← → 728021281

2進数表記:101011011001001011100100100000

漢数字表記:七億二千八百二万千二百八十

素因数分解:

2 5 × 3 1 × 5 1 × 7 1 × 389 1 × 557 1

素因数の和:971
約数の個数: 192
約数和(自身を含む): 2632331520
約数和(自身を除く): 1904310240

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 389, 420, 480, 557, 560, 672, 778, 840, 1114, 1120, 1167, 1556, 1671, 1680, 1945, 2228, 2334, 2723, 2785, 3112, 3342, 3360, 3890, 3899, 4456, 4668, 5446, 5570, 5835, 6224, 6684, 7780, 7798, 8169, 8355, 8912, 9336, 10892, 11140, 11670, 11697, 12448, 13368, 13615, 15560, 15596, 16338, 16710, 17824, 18672, 19495, 21784, 22280, 23340, 23394, 26736, 27230, 31120, 31192, 32676, 33420, 37344, 38990, 40845, 43568, 44560, 46680, 46788, 53472, 54460, 58485, 62240, 62384, 65352, 66840, 77980, 81690, 87136, 89120, 93360, 93576, 108920, 116970, 124768, 130704, 133680, 155960, 163380, 186720, 187152, 216673, 217840, 233940, 261408, 267360, 311920, 326760, 374304, 433346, 435680, 467880, 623840, 650019, 653520, 866692, 935760, 1083365, 1300038, 1307040, 1516711, 1733384, 1871520, 2166730, 2600076, 3033422, 3250095, 3466768, 4333460, 4550133, 5200152, 6066844, 6500190, 6933536, 7583555, 8666920, 9100266, 10400304, 12133688, 13000380, 15167110, 17333840, 18200532, 20800608, 22750665, 24267376, 26000760, 30334220, 34667680, 36401064, 45501330, 48534752, 52001520, 60668440, 72802128, 91002660, 104003040, 121336880, 145604256, 182005320, 242673760, 364010640, 728021280]

約数ペア:
[(1, 728021280), (2, 364010640), (3, 242673760), (4, 182005320), (5, 145604256), (6, 121336880), (7, 104003040), (8, 91002660), (10, 72802128), (12, 60668440), (14, 52001520), (15, 48534752), (16, 45501330), (20, 36401064), (21, 34667680), (24, 30334220), (28, 26000760), (30, 24267376), (32, 22750665), (35, 20800608), (40, 18200532), (42, 17333840), (48, 15167110), (56, 13000380), (60, 12133688), (70, 10400304), (80, 9100266), (84, 8666920), (96, 7583555), (105, 6933536), (112, 6500190), (120, 6066844), (140, 5200152), (160, 4550133), (168, 4333460), (210, 3466768), (224, 3250095), (240, 3033422), (280, 2600076), (336, 2166730), (389, 1871520), (420, 1733384), (480, 1516711), (557, 1307040), (560, 1300038), (672, 1083365), (778, 935760), (840, 866692), (1114, 653520), (1120, 650019), (1167, 623840), (1556, 467880), (1671, 435680), (1680, 433346), (1945, 374304), (2228, 326760), (2334, 311920), (2723, 267360), (2785, 261408), (3112, 233940), (3342, 217840), (3360, 216673), (3890, 187152), (3899, 186720), (4456, 163380), (4668, 155960), (5446, 133680), (5570, 130704), (5835, 124768), (6224, 116970), (6684, 108920), (7780, 93576), (7798, 93360), (8169, 89120), (8355, 87136), (8912, 81690), (9336, 77980), (10892, 66840), (11140, 65352), (11670, 62384), (11697, 62240), (12448, 58485), (13368, 54460), (13615, 53472), (15560, 46788), (15596, 46680), (16338, 44560), (16710, 43568), (17824, 40845), (18672, 38990), (19495, 37344), (21784, 33420), (22280, 32676), (23340, 31192), (23394, 31120), (26736, 27230)]

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