About the Number

989309820

989309819 ← → 989309821

2進数表記:111010111101111010101101111100

漢数字表記:九億八千九百三十万九千八百二十

素因数分解:

2 2 × 3 1 × 5 1 × 31 1 × 241 1 × 2207 1

素因数の和:2491
約数の個数: 96
約数和(自身を含む): 2872590336
約数和(自身を除く): 1883280516

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 241, 310, 372, 465, 482, 620, 723, 930, 964, 1205, 1446, 1860, 2207, 2410, 2892, 3615, 4414, 4820, 6621, 7230, 7471, 8828, 11035, 13242, 14460, 14942, 22070, 22413, 26484, 29884, 33105, 37355, 44140, 44826, 66210, 68417, 74710, 89652, 112065, 132420, 136834, 149420, 205251, 224130, 273668, 342085, 410502, 448260, 531887, 684170, 821004, 1026255, 1063774, 1368340, 1595661, 2052510, 2127548, 2659435, 3191322, 4105020, 5318870, 6382644, 7978305, 10637740, 15956610, 16488497, 31913220, 32976994, 49465491, 65953988, 82442485, 98930982, 164884970, 197861964, 247327455, 329769940, 494654910, 989309820]

約数ペア:
[(1, 989309820), (2, 494654910), (3, 329769940), (4, 247327455), (5, 197861964), (6, 164884970), (10, 98930982), (12, 82442485), (15, 65953988), (20, 49465491), (30, 32976994), (31, 31913220), (60, 16488497), (62, 15956610), (93, 10637740), (124, 7978305), (155, 6382644), (186, 5318870), (241, 4105020), (310, 3191322), (372, 2659435), (465, 2127548), (482, 2052510), (620, 1595661), (723, 1368340), (930, 1063774), (964, 1026255), (1205, 821004), (1446, 684170), (1860, 531887), (2207, 448260), (2410, 410502), (2892, 342085), (3615, 273668), (4414, 224130), (4820, 205251), (6621, 149420), (7230, 136834), (7471, 132420), (8828, 112065), (11035, 89652), (13242, 74710), (14460, 68417), (14942, 66210), (22070, 44826), (22413, 44140), (26484, 37355), (29884, 33105)]

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