About the Number

138997890

138997889 ← → 138997891

2進数表記:1000010010001111000010000010

漢数字表記:一億三千八百九十九万七千八百九十

素因数分解:

2 1 × 3 3 × 5 1 × 109 1 × 4723 1

素因数の和:4848
約数の個数: 64
約数和(自身を含む): 374140800
約数和(自身を除く): 235142910

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 109, 135, 218, 270, 327, 545, 654, 981, 1090, 1635, 1962, 2943, 3270, 4723, 4905, 5886, 9446, 9810, 14169, 14715, 23615, 28338, 29430, 42507, 47230, 70845, 85014, 127521, 141690, 212535, 255042, 425070, 514807, 637605, 1029614, 1275210, 1544421, 2574035, 3088842, 4633263, 5148070, 7722105, 9266526, 13899789, 15444210, 23166315, 27799578, 46332630, 69498945, 138997890]

約数ペア:
[(1, 138997890), (2, 69498945), (3, 46332630), (5, 27799578), (6, 23166315), (9, 15444210), (10, 13899789), (15, 9266526), (18, 7722105), (27, 5148070), (30, 4633263), (45, 3088842), (54, 2574035), (90, 1544421), (109, 1275210), (135, 1029614), (218, 637605), (270, 514807), (327, 425070), (545, 255042), (654, 212535), (981, 141690), (1090, 127521), (1635, 85014), (1962, 70845), (2943, 47230), (3270, 42507), (4723, 29430), (4905, 28338), (5886, 23615), (9446, 14715), (9810, 14169)]

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