About the Number

428490

428489 ← → 428491

2進数表記:1101000100111001010

漢数字表記:四十二万八千四百九十

素因数分解:

2 1 × 3 4 × 5 1 × 23 2

素因数の和:65
約数の個数: 60
約数和(自身を含む): 1204434
約数和(自身を除く): 775944

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 81, 90, 115, 135, 138, 162, 207, 230, 270, 345, 405, 414, 529, 621, 690, 810, 1035, 1058, 1242, 1587, 1863, 2070, 2645, 3105, 3174, 3726, 4761, 5290, 6210, 7935, 9315, 9522, 14283, 15870, 18630, 23805, 28566, 42849, 47610, 71415, 85698, 142830, 214245, 428490]

約数ペア:
[(1, 428490), (2, 214245), (3, 142830), (5, 85698), (6, 71415), (9, 47610), (10, 42849), (15, 28566), (18, 23805), (23, 18630), (27, 15870), (30, 14283), (45, 9522), (46, 9315), (54, 7935), (69, 6210), (81, 5290), (90, 4761), (115, 3726), (135, 3174), (138, 3105), (162, 2645), (207, 2070), (230, 1863), (270, 1587), (345, 1242), (405, 1058), (414, 1035), (529, 810), (621, 690)]

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