About the Number

123403980

123403979 ← → 123403981

2進数表記:111010110101111111011001100

漢数字表記:一億二千三百四十万三千九百八十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 43 1 × 6833 1

素因数の和:6895
約数の個数: 96
約数和(自身を含む): 404135424
約数和(自身を除く): 280731444

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 84, 86, 105, 129, 140, 172, 210, 215, 258, 301, 420, 430, 516, 602, 645, 860, 903, 1204, 1290, 1505, 1806, 2580, 3010, 3612, 4515, 6020, 6833, 9030, 13666, 18060, 20499, 27332, 34165, 40998, 47831, 68330, 81996, 95662, 102495, 136660, 143493, 191324, 204990, 239155, 286986, 293819, 409980, 478310, 573972, 587638, 717465, 881457, 956620, 1175276, 1434930, 1469095, 1762914, 2056733, 2869860, 2938190, 3525828, 4113466, 4407285, 5876380, 6170199, 8226932, 8814570, 10283665, 12340398, 17629140, 20567330, 24680796, 30850995, 41134660, 61701990, 123403980]

約数ペア:
[(1, 123403980), (2, 61701990), (3, 41134660), (4, 30850995), (5, 24680796), (6, 20567330), (7, 17629140), (10, 12340398), (12, 10283665), (14, 8814570), (15, 8226932), (20, 6170199), (21, 5876380), (28, 4407285), (30, 4113466), (35, 3525828), (42, 2938190), (43, 2869860), (60, 2056733), (70, 1762914), (84, 1469095), (86, 1434930), (105, 1175276), (129, 956620), (140, 881457), (172, 717465), (210, 587638), (215, 573972), (258, 478310), (301, 409980), (420, 293819), (430, 286986), (516, 239155), (602, 204990), (645, 191324), (860, 143493), (903, 136660), (1204, 102495), (1290, 95662), (1505, 81996), (1806, 68330), (2580, 47831), (3010, 40998), (3612, 34165), (4515, 27332), (6020, 20499), (6833, 18060), (9030, 13666)]

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