About the Number

398428128

398428127 ← → 398428129

2進数表記:10111101111111000011111100000

漢数字表記:三億九千八百四十二万八千百二十八

素因数分解:

2 5 × 3 2 × 7 1 × 257 1 × 769 1

素因数の和:1049
約数の個数: 144
約数和(自身を含む): 1301620320
約数和(自身を除く): 903192192

約数列:
[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 257, 288, 336, 504, 514, 672, 769, 771, 1008, 1028, 1538, 1542, 1799, 2016, 2056, 2307, 2313, 3076, 3084, 3598, 4112, 4614, 4626, 5383, 5397, 6152, 6168, 6921, 7196, 8224, 9228, 9252, 10766, 10794, 12304, 12336, 13842, 14392, 16149, 16191, 18456, 18504, 21532, 21588, 24608, 24672, 27684, 28784, 32298, 32382, 36912, 37008, 43064, 43176, 48447, 55368, 57568, 64596, 64764, 73824, 74016, 86128, 86352, 96894, 110736, 129192, 129528, 172256, 172704, 193788, 197633, 221472, 258384, 259056, 387576, 395266, 516768, 518112, 592899, 775152, 790532, 1185798, 1383431, 1550304, 1581064, 1778697, 2371596, 2766862, 3162128, 3557394, 4150293, 4743192, 5533724, 6324256, 7114788, 8300586, 9486384, 11067448, 12450879, 14229576, 16601172, 18972768, 22134896, 24901758, 28459152, 33202344, 44269792, 49803516, 56918304, 66404688, 99607032, 132809376, 199214064, 398428128]

約数ペア:
[(1, 398428128), (2, 199214064), (3, 132809376), (4, 99607032), (6, 66404688), (7, 56918304), (8, 49803516), (9, 44269792), (12, 33202344), (14, 28459152), (16, 24901758), (18, 22134896), (21, 18972768), (24, 16601172), (28, 14229576), (32, 12450879), (36, 11067448), (42, 9486384), (48, 8300586), (56, 7114788), (63, 6324256), (72, 5533724), (84, 4743192), (96, 4150293), (112, 3557394), (126, 3162128), (144, 2766862), (168, 2371596), (224, 1778697), (252, 1581064), (257, 1550304), (288, 1383431), (336, 1185798), (504, 790532), (514, 775152), (672, 592899), (769, 518112), (771, 516768), (1008, 395266), (1028, 387576), (1538, 259056), (1542, 258384), (1799, 221472), (2016, 197633), (2056, 193788), (2307, 172704), (2313, 172256), (3076, 129528), (3084, 129192), (3598, 110736), (4112, 96894), (4614, 86352), (4626, 86128), (5383, 74016), (5397, 73824), (6152, 64764), (6168, 64596), (6921, 57568), (7196, 55368), (8224, 48447), (9228, 43176), (9252, 43064), (10766, 37008), (10794, 36912), (12304, 32382), (12336, 32298), (13842, 28784), (14392, 27684), (16149, 24672), (16191, 24608), (18456, 21588), (18504, 21532)]

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