About the Number

31300920

31300919 ← → 31300921

2進数表記:1110111011001110100111000

漢数字表記:三千百三十万九百二十

素因数分解:

2 3 × 3 2 × 5 1 × 7 1 × 12421 1

素因数の和:12445
約数の個数: 96
約数和(自身を含む): 116269920
約数和(自身を除く): 84969000

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 12421, 24842, 37263, 49684, 62105, 74526, 86947, 99368, 111789, 124210, 149052, 173894, 186315, 223578, 248420, 260841, 298104, 347788, 372630, 434735, 447156, 496840, 521682, 558945, 695576, 745260, 782523, 869470, 894312, 1043364, 1117890, 1304205, 1490520, 1565046, 1738940, 2086728, 2235780, 2608410, 3130092, 3477880, 3912615, 4471560, 5216820, 6260184, 7825230, 10433640, 15650460, 31300920]

約数ペア:
[(1, 31300920), (2, 15650460), (3, 10433640), (4, 7825230), (5, 6260184), (6, 5216820), (7, 4471560), (8, 3912615), (9, 3477880), (10, 3130092), (12, 2608410), (14, 2235780), (15, 2086728), (18, 1738940), (20, 1565046), (21, 1490520), (24, 1304205), (28, 1117890), (30, 1043364), (35, 894312), (36, 869470), (40, 782523), (42, 745260), (45, 695576), (56, 558945), (60, 521682), (63, 496840), (70, 447156), (72, 434735), (84, 372630), (90, 347788), (105, 298104), (120, 260841), (126, 248420), (140, 223578), (168, 186315), (180, 173894), (210, 149052), (252, 124210), (280, 111789), (315, 99368), (360, 86947), (420, 74526), (504, 62105), (630, 49684), (840, 37263), (1260, 24842), (2520, 12421)]

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