About the Number

131258820

131258819 ← → 131258821

2進数表記:111110100101101100111000100

漢数字表記:一億三千百二十五万八千八百二十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 11 1 × 28411 1

素因数の和:28441
約数の個数: 96
約数和(自身を含む): 458228736
約数和(自身を除く): 326969916

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4620, 28411, 56822, 85233, 113644, 142055, 170466, 198877, 284110, 312521, 340932, 397754, 426165, 568220, 596631, 625042, 795508, 852330, 937563, 994385, 1193262, 1250084, 1562605, 1704660, 1875126, 1988770, 2187647, 2386524, 2983155, 3125210, 3750252, 3977540, 4375294, 4687815, 5966310, 6250420, 6562941, 8750588, 9375630, 10938235, 11932620, 13125882, 18751260, 21876470, 26251764, 32814705, 43752940, 65629410, 131258820]

約数ペア:
[(1, 131258820), (2, 65629410), (3, 43752940), (4, 32814705), (5, 26251764), (6, 21876470), (7, 18751260), (10, 13125882), (11, 11932620), (12, 10938235), (14, 9375630), (15, 8750588), (20, 6562941), (21, 6250420), (22, 5966310), (28, 4687815), (30, 4375294), (33, 3977540), (35, 3750252), (42, 3125210), (44, 2983155), (55, 2386524), (60, 2187647), (66, 1988770), (70, 1875126), (77, 1704660), (84, 1562605), (105, 1250084), (110, 1193262), (132, 994385), (140, 937563), (154, 852330), (165, 795508), (210, 625042), (220, 596631), (231, 568220), (308, 426165), (330, 397754), (385, 340932), (420, 312521), (462, 284110), (660, 198877), (770, 170466), (924, 142055), (1155, 113644), (1540, 85233), (2310, 56822), (4620, 28411)]

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