About the Number

1900920

1900919 ← → 1900921

2進数表記:111010000000101111000

漢数字表記:百九十万九百二十

素因数分解:

2 3 × 3 1 × 5 1 × 7 1 × 31 1 × 73 1

素因数の和:125
約数の個数: 128
約数和(自身を含む): 6819840
約数和(自身を除く): 4918920

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 73, 84, 93, 105, 120, 124, 140, 146, 155, 168, 186, 210, 217, 219, 248, 280, 292, 310, 365, 372, 420, 434, 438, 465, 511, 584, 620, 651, 730, 744, 840, 868, 876, 930, 1022, 1085, 1095, 1240, 1302, 1460, 1533, 1736, 1752, 1860, 2044, 2170, 2190, 2263, 2555, 2604, 2920, 3066, 3255, 3720, 4088, 4340, 4380, 4526, 5110, 5208, 6132, 6510, 6789, 7665, 8680, 8760, 9052, 10220, 11315, 12264, 13020, 13578, 15330, 15841, 18104, 20440, 22630, 26040, 27156, 30660, 31682, 33945, 45260, 47523, 54312, 61320, 63364, 67890, 79205, 90520, 95046, 126728, 135780, 158410, 190092, 237615, 271560, 316820, 380184, 475230, 633640, 950460, 1900920]

約数ペア:
[(1, 1900920), (2, 950460), (3, 633640), (4, 475230), (5, 380184), (6, 316820), (7, 271560), (8, 237615), (10, 190092), (12, 158410), (14, 135780), (15, 126728), (20, 95046), (21, 90520), (24, 79205), (28, 67890), (30, 63364), (31, 61320), (35, 54312), (40, 47523), (42, 45260), (56, 33945), (60, 31682), (62, 30660), (70, 27156), (73, 26040), (84, 22630), (93, 20440), (105, 18104), (120, 15841), (124, 15330), (140, 13578), (146, 13020), (155, 12264), (168, 11315), (186, 10220), (210, 9052), (217, 8760), (219, 8680), (248, 7665), (280, 6789), (292, 6510), (310, 6132), (365, 5208), (372, 5110), (420, 4526), (434, 4380), (438, 4340), (465, 4088), (511, 3720), (584, 3255), (620, 3066), (651, 2920), (730, 2604), (744, 2555), (840, 2263), (868, 2190), (876, 2170), (930, 2044), (1022, 1860), (1085, 1752), (1095, 1736), (1240, 1533), (1302, 1460)]

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