About the Number

1994172885

1994172884 ← → 1994172886

2進数表記:1110110110111001010100111010101

漢数字表記:十九億九千四百十七万二千八百八十五

素因数分解:

3 3 × 5 1 × 167 1 × 197 1 × 449 1

素因数の和:827
約数の個数: 64
約数和(自身を含む): 3592512000
約数和(自身を除く): 1598339115

約数列:
[1, 3, 5, 9, 15, 27, 45, 135, 167, 197, 449, 501, 591, 835, 985, 1347, 1503, 1773, 2245, 2505, 2955, 4041, 4509, 5319, 6735, 7515, 8865, 12123, 20205, 22545, 26595, 32899, 60615, 74983, 88453, 98697, 164495, 224949, 265359, 296091, 374915, 442265, 493485, 674847, 796077, 888273, 1124745, 1326795, 1480455, 2024541, 2388231, 3374235, 3980385, 4441365, 10122705, 11941155, 14771651, 44314953, 73858255, 132944859, 221574765, 398834577, 664724295, 1994172885]

約数ペア:
[(1, 1994172885), (3, 664724295), (5, 398834577), (9, 221574765), (15, 132944859), (27, 73858255), (45, 44314953), (135, 14771651), (167, 11941155), (197, 10122705), (449, 4441365), (501, 3980385), (591, 3374235), (835, 2388231), (985, 2024541), (1347, 1480455), (1503, 1326795), (1773, 1124745), (2245, 888273), (2505, 796077), (2955, 674847), (4041, 493485), (4509, 442265), (5319, 374915), (6735, 296091), (7515, 265359), (8865, 224949), (12123, 164495), (20205, 98697), (22545, 88453), (26595, 74983), (32899, 60615)]

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