About the Number

128697240

128697239 ← → 128697241

2進数表記:111101010111100001110011000

漢数字表記:一億二千八百六十九万七千二百四十

素因数分解:

2 3 × 3 1 × 5 1 × 7 1 × 349 1 × 439 1

素因数の和:809
約数の個数: 128
約数和(自身を含む): 443520000
約数和(自身を除く): 314822760

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 349, 420, 439, 698, 840, 878, 1047, 1317, 1396, 1745, 1756, 2094, 2195, 2443, 2634, 2792, 3073, 3490, 3512, 4188, 4390, 4886, 5235, 5268, 6146, 6585, 6980, 7329, 8376, 8780, 9219, 9772, 10470, 10536, 12215, 12292, 13170, 13960, 14658, 15365, 17560, 18438, 19544, 20940, 24430, 24584, 26340, 29316, 30730, 36645, 36876, 41880, 46095, 48860, 52680, 58632, 61460, 73290, 73752, 92190, 97720, 122920, 146580, 153211, 184380, 293160, 306422, 368760, 459633, 612844, 766055, 919266, 1072477, 1225688, 1532110, 1838532, 2144954, 2298165, 3064220, 3217431, 3677064, 4289908, 4596330, 5362385, 6128440, 6434862, 8579816, 9192660, 10724770, 12869724, 16087155, 18385320, 21449540, 25739448, 32174310, 42899080, 64348620, 128697240]

約数ペア:
[(1, 128697240), (2, 64348620), (3, 42899080), (4, 32174310), (5, 25739448), (6, 21449540), (7, 18385320), (8, 16087155), (10, 12869724), (12, 10724770), (14, 9192660), (15, 8579816), (20, 6434862), (21, 6128440), (24, 5362385), (28, 4596330), (30, 4289908), (35, 3677064), (40, 3217431), (42, 3064220), (56, 2298165), (60, 2144954), (70, 1838532), (84, 1532110), (105, 1225688), (120, 1072477), (140, 919266), (168, 766055), (210, 612844), (280, 459633), (349, 368760), (420, 306422), (439, 293160), (698, 184380), (840, 153211), (878, 146580), (1047, 122920), (1317, 97720), (1396, 92190), (1745, 73752), (1756, 73290), (2094, 61460), (2195, 58632), (2443, 52680), (2634, 48860), (2792, 46095), (3073, 41880), (3490, 36876), (3512, 36645), (4188, 30730), (4390, 29316), (4886, 26340), (5235, 24584), (5268, 24430), (6146, 20940), (6585, 19544), (6980, 18438), (7329, 17560), (8376, 15365), (8780, 14658), (9219, 13960), (9772, 13170), (10470, 12292), (10536, 12215)]

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