About the Number

1284390

1284389 ← → 1284391

2進数表記:100111001100100100110

漢数字表記:百二十八万四千三百九十

素因数分解:

2 1 × 3 3 × 5 1 × 67 1 × 71 1

素因数の和:154
約数の個数: 64
約数和(自身を含む): 3525120
約数和(自身を除く): 2240730

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 67, 71, 90, 134, 135, 142, 201, 213, 270, 335, 355, 402, 426, 603, 639, 670, 710, 1005, 1065, 1206, 1278, 1809, 1917, 2010, 2130, 3015, 3195, 3618, 3834, 4757, 6030, 6390, 9045, 9514, 9585, 14271, 18090, 19170, 23785, 28542, 42813, 47570, 71355, 85626, 128439, 142710, 214065, 256878, 428130, 642195, 1284390]

約数ペア:
[(1, 1284390), (2, 642195), (3, 428130), (5, 256878), (6, 214065), (9, 142710), (10, 128439), (15, 85626), (18, 71355), (27, 47570), (30, 42813), (45, 28542), (54, 23785), (67, 19170), (71, 18090), (90, 14271), (134, 9585), (135, 9514), (142, 9045), (201, 6390), (213, 6030), (270, 4757), (335, 3834), (355, 3618), (402, 3195), (426, 3015), (603, 2130), (639, 2010), (670, 1917), (710, 1809), (1005, 1278), (1065, 1206)]

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