About the Number

388219020

388219019 ← → 388219021

2進数表記:10111001000111100000010001100

漢数字表記:三億八千八百二十一万九千二十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 19 1 × 48649 1

素因数の和:48687
約数の個数: 96
約数和(自身を含む): 1307712000
約数和(自身を除く): 919492980

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 48649, 97298, 145947, 194596, 243245, 291894, 340543, 486490, 583788, 681086, 729735, 924331, 972980, 1021629, 1362172, 1459470, 1702715, 1848662, 2043258, 2772993, 2918940, 3405430, 3697324, 4086516, 4621655, 5108145, 5545986, 6470317, 6810860, 9243310, 10216290, 11091972, 12940634, 13864965, 18486620, 19410951, 20432580, 25881268, 27729930, 32351585, 38821902, 55459860, 64703170, 77643804, 97054755, 129406340, 194109510, 388219020]

約数ペア:
[(1, 388219020), (2, 194109510), (3, 129406340), (4, 97054755), (5, 77643804), (6, 64703170), (7, 55459860), (10, 38821902), (12, 32351585), (14, 27729930), (15, 25881268), (19, 20432580), (20, 19410951), (21, 18486620), (28, 13864965), (30, 12940634), (35, 11091972), (38, 10216290), (42, 9243310), (57, 6810860), (60, 6470317), (70, 5545986), (76, 5108145), (84, 4621655), (95, 4086516), (105, 3697324), (114, 3405430), (133, 2918940), (140, 2772993), (190, 2043258), (210, 1848662), (228, 1702715), (266, 1459470), (285, 1362172), (380, 1021629), (399, 972980), (420, 924331), (532, 729735), (570, 681086), (665, 583788), (798, 486490), (1140, 340543), (1330, 291894), (1596, 243245), (1995, 194596), (2660, 145947), (3990, 97298), (7980, 48649)]

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