About the Number

398045007490

398045007489 ← → 398045007491

2進数表記:101110010101101010101001100111010000010

漢数字表記:三千九百八十億四千五百万七千四百九十

素因数分解:

2 1 × 5 1 × 13 1 × 3061884673 1

素因数の和:3061884693
約数の個数: 16
約数和(自身を含む): 771594937848
約数和(自身を除く): 373549930358

約数列:
[1, 2, 5, 10, 13, 26, 65, 130, 3061884673, 6123769346, 15309423365, 30618846730, 39804500749, 79609001498, 199022503745, 398045007490]

約数ペア:
[(1, 398045007490), (2, 199022503745), (5, 79609001498), (10, 39804500749), (13, 30618846730), (26, 15309423365), (65, 6123769346), (130, 3061884673)]

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