About the Number

28914990

28914989 ← → 28914991

2進数表記:1101110010011010100101110

漢数字表記:二千八百九十一万四千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 13 1 × 151 1 × 491 1

素因数の和:665
約数の個数: 64
約数和(自身を含む): 75382272
約数和(自身を除く): 46467282

約数列:
[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 151, 195, 302, 390, 453, 491, 755, 906, 982, 1473, 1510, 1963, 2265, 2455, 2946, 3926, 4530, 4910, 5889, 6383, 7365, 9815, 11778, 12766, 14730, 19149, 19630, 29445, 31915, 38298, 58890, 63830, 74141, 95745, 148282, 191490, 222423, 370705, 444846, 741410, 963833, 1112115, 1927666, 2224230, 2891499, 4819165, 5782998, 9638330, 14457495, 28914990]

約数ペア:
[(1, 28914990), (2, 14457495), (3, 9638330), (5, 5782998), (6, 4819165), (10, 2891499), (13, 2224230), (15, 1927666), (26, 1112115), (30, 963833), (39, 741410), (65, 444846), (78, 370705), (130, 222423), (151, 191490), (195, 148282), (302, 95745), (390, 74141), (453, 63830), (491, 58890), (755, 38298), (906, 31915), (982, 29445), (1473, 19630), (1510, 19149), (1963, 14730), (2265, 12766), (2455, 11778), (2946, 9815), (3926, 7365), (4530, 6383), (4910, 5889)]

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