About the Number

3970980

3970979 ← → 3970981

2進数表記:1111001001011110100100

漢数字表記:三百九十七万九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 13 1 × 1697 1

素因数の和:1725
約数の個数: 72
約数和(自身を含む): 12979512
約数和(自身を除く): 9008532

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 1697, 2340, 3394, 5091, 6788, 8485, 10182, 15273, 16970, 20364, 22061, 25455, 30546, 33940, 44122, 50910, 61092, 66183, 76365, 88244, 101820, 110305, 132366, 152730, 198549, 220610, 264732, 305460, 330915, 397098, 441220, 661830, 794196, 992745, 1323660, 1985490, 3970980]

約数ペア:
[(1, 3970980), (2, 1985490), (3, 1323660), (4, 992745), (5, 794196), (6, 661830), (9, 441220), (10, 397098), (12, 330915), (13, 305460), (15, 264732), (18, 220610), (20, 198549), (26, 152730), (30, 132366), (36, 110305), (39, 101820), (45, 88244), (52, 76365), (60, 66183), (65, 61092), (78, 50910), (90, 44122), (117, 33940), (130, 30546), (156, 25455), (180, 22061), (195, 20364), (234, 16970), (260, 15273), (390, 10182), (468, 8485), (585, 6788), (780, 5091), (1170, 3394), (1697, 2340)]

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