About the Number

3988890

3988889 ← → 3988891

2進数表記:1111001101110110011010

漢数字表記:三百九十八万八千八百九十

素因数分解:

2 1 × 3 2 × 5 1 × 23 1 × 41 1 × 47 1

素因数の和:124
約数の個数: 96
約数和(自身を含む): 11321856
約数和(自身を除く): 7332966

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 41, 45, 46, 47, 69, 82, 90, 94, 115, 123, 138, 141, 205, 207, 230, 235, 246, 282, 345, 369, 410, 414, 423, 470, 615, 690, 705, 738, 846, 943, 1035, 1081, 1230, 1410, 1845, 1886, 1927, 2070, 2115, 2162, 2829, 3243, 3690, 3854, 4230, 4715, 5405, 5658, 5781, 6486, 8487, 9430, 9635, 9729, 10810, 11562, 14145, 16215, 16974, 17343, 19270, 19458, 28290, 28905, 32430, 34686, 42435, 44321, 48645, 57810, 84870, 86715, 88642, 97290, 132963, 173430, 221605, 265926, 398889, 443210, 664815, 797778, 1329630, 1994445, 3988890]

約数ペア:
[(1, 3988890), (2, 1994445), (3, 1329630), (5, 797778), (6, 664815), (9, 443210), (10, 398889), (15, 265926), (18, 221605), (23, 173430), (30, 132963), (41, 97290), (45, 88642), (46, 86715), (47, 84870), (69, 57810), (82, 48645), (90, 44321), (94, 42435), (115, 34686), (123, 32430), (138, 28905), (141, 28290), (205, 19458), (207, 19270), (230, 17343), (235, 16974), (246, 16215), (282, 14145), (345, 11562), (369, 10810), (410, 9729), (414, 9635), (423, 9430), (470, 8487), (615, 6486), (690, 5781), (705, 5658), (738, 5405), (846, 4715), (943, 4230), (1035, 3854), (1081, 3690), (1230, 3243), (1410, 2829), (1845, 2162), (1886, 2115), (1927, 2070)]

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