About the Number

17988390

17988389 ← → 17988391

2進数表記:1000100100111101100100110

漢数字表記:千七百九十八万八千三百九十

素因数分解:

2 1 × 3 2 × 5 1 × 7 2 × 4079 1

素因数の和:4106
約数の個数: 72
約数和(自身を含む): 54419040
約数和(自身を除く): 36430650

約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4079, 4410, 8158, 12237, 20395, 24474, 28553, 36711, 40790, 57106, 61185, 73422, 85659, 122370, 142765, 171318, 183555, 199871, 256977, 285530, 367110, 399742, 428295, 513954, 599613, 856590, 999355, 1199226, 1284885, 1798839, 1998710, 2569770, 2998065, 3597678, 5996130, 8994195, 17988390]

約数ペア:
[(1, 17988390), (2, 8994195), (3, 5996130), (5, 3597678), (6, 2998065), (7, 2569770), (9, 1998710), (10, 1798839), (14, 1284885), (15, 1199226), (18, 999355), (21, 856590), (30, 599613), (35, 513954), (42, 428295), (45, 399742), (49, 367110), (63, 285530), (70, 256977), (90, 199871), (98, 183555), (105, 171318), (126, 142765), (147, 122370), (210, 85659), (245, 73422), (294, 61185), (315, 57106), (441, 40790), (490, 36711), (630, 28553), (735, 24474), (882, 20395), (1470, 12237), (2205, 8158), (4079, 4410)]

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