About the Number

198728972

198728971 ← → 198728973

2進数表記:1011110110000101110100001100

漢数字表記:一億九千八百七十二万八千九百七十二

素因数分解:

2 2 × 13 1 × 31 1 × 43 1 × 47 1 × 61 1

素因数の和:199
約数の個数: 96
約数和(自身を含む): 410640384
約数和(自身を除く): 211911412

約数列:
[1, 2, 4, 13, 26, 31, 43, 47, 52, 61, 62, 86, 94, 122, 124, 172, 188, 244, 403, 559, 611, 793, 806, 1118, 1222, 1333, 1457, 1586, 1612, 1891, 2021, 2236, 2444, 2623, 2666, 2867, 2914, 3172, 3782, 4042, 5246, 5332, 5734, 5828, 7564, 8084, 10492, 11468, 17329, 18941, 24583, 26273, 34099, 34658, 37271, 37882, 49166, 52546, 62651, 68198, 69316, 74542, 75764, 81313, 88877, 98332, 105092, 123281, 125302, 136396, 149084, 162626, 177754, 246562, 250604, 325252, 355508, 493124, 814463, 1057069, 1155401, 1602653, 1628926, 2114138, 2310802, 3205306, 3257852, 3821711, 4228276, 4621604, 6410612, 7643422, 15286844, 49682243, 99364486, 198728972]

約数ペア:
[(1, 198728972), (2, 99364486), (4, 49682243), (13, 15286844), (26, 7643422), (31, 6410612), (43, 4621604), (47, 4228276), (52, 3821711), (61, 3257852), (62, 3205306), (86, 2310802), (94, 2114138), (122, 1628926), (124, 1602653), (172, 1155401), (188, 1057069), (244, 814463), (403, 493124), (559, 355508), (611, 325252), (793, 250604), (806, 246562), (1118, 177754), (1222, 162626), (1333, 149084), (1457, 136396), (1586, 125302), (1612, 123281), (1891, 105092), (2021, 98332), (2236, 88877), (2444, 81313), (2623, 75764), (2666, 74542), (2867, 69316), (2914, 68198), (3172, 62651), (3782, 52546), (4042, 49166), (5246, 37882), (5332, 37271), (5734, 34658), (5828, 34099), (7564, 26273), (8084, 24583), (10492, 18941), (11468, 17329)]

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