About the Number

2978220

2978219 ← → 2978221

2進数表記:1011010111000110101100

漢数字表記:二百九十七万八千二百二十

素因数分解:

2 2 × 3 1 × 5 1 × 7 2 × 1013 1

素因数の和:1039
約数の個数: 72
約数和(自身を含む): 9710064
約数和(自身を除く): 6731844

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1013, 1470, 2026, 2940, 3039, 4052, 5065, 6078, 7091, 10130, 12156, 14182, 15195, 20260, 21273, 28364, 30390, 35455, 42546, 49637, 60780, 70910, 85092, 99274, 106365, 141820, 148911, 198548, 212730, 248185, 297822, 425460, 496370, 595644, 744555, 992740, 1489110, 2978220]

約数ペア:
[(1, 2978220), (2, 1489110), (3, 992740), (4, 744555), (5, 595644), (6, 496370), (7, 425460), (10, 297822), (12, 248185), (14, 212730), (15, 198548), (20, 148911), (21, 141820), (28, 106365), (30, 99274), (35, 85092), (42, 70910), (49, 60780), (60, 49637), (70, 42546), (84, 35455), (98, 30390), (105, 28364), (140, 21273), (147, 20260), (196, 15195), (210, 14182), (245, 12156), (294, 10130), (420, 7091), (490, 6078), (588, 5065), (735, 4052), (980, 3039), (1013, 2940), (1470, 2026)]

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