281913240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3079}}^1$

素因数の和:3209

約数の個数: 128

約数和(自身を含む): 975744000

約数和(自身を除く): 693830760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 109, 120, 140, 168, 210, 218, 280, 327, 420, 436, 545, 654, 763, 840, 872, 1090, 1308, 1526, 1635, 2180, 2289, 2616, 3052, 3079, 3270, 3815, 4360, 4578, 6104, 6158, 6540, 7630, 9156, 9237, 11445, 12316, 13080, 15260, 15395, 18312, 18474, 21553, 22890, 24632, 30520, 30790, 36948, 43106, 45780, 46185, 61580, 64659, 73896, 86212, 91560, 92370, 107765, 123160, 129318, 172424, 184740, 215530, 258636, 323295, 335611, 369480, 431060, 517272, 646590, 671222, 862120, 1006833, 1293180, 1342444, 1678055, 2013666, 2349277, 2586360, 2684888, 3356110, 4027332, 4698554, 5034165, 6712220, 7047831, 8054664, 9397108, 10068330, 11746385, 13424440, 14095662, 18794216, 20136660, 23492770, 28191324, 35239155, 40273320, 46985540, 56382648, 70478310, 93971080, 140956620, 281913240]

約数ペア:

[(1, 281913240), (2, 140956620), (3, 93971080), (4, 70478310), (5, 56382648), (6, 46985540), (7, 40273320), (8, 35239155), (10, 28191324), (12, 23492770), (14, 20136660), (15, 18794216), (20, 14095662), (21, 13424440), (24, 11746385), (28, 10068330), (30, 9397108), (35, 8054664), (40, 7047831), (42, 6712220), (56, 5034165), (60, 4698554), (70, 4027332), (84, 3356110), (105, 2684888), (109, 2586360), (120, 2349277), (140, 2013666), (168, 1678055), (210, 1342444), (218, 1293180), (280, 1006833), (327, 862120), (420, 671222), (436, 646590), (545, 517272), (654, 431060), (763, 369480), (840, 335611), (872, 323295), (1090, 258636), (1308, 215530), (1526, 184740), (1635, 172424), (2180, 129318), (2289, 123160), (2616, 107765), (3052, 92370), (3079, 91560), (3270, 86212), (3815, 73896), (4360, 64659), (4578, 61580), (6104, 46185), (6158, 45780), (6540, 43106), (7630, 36948), (9156, 30790), (9237, 30520), (11445, 24632), (12316, 22890), (13080, 21553), (15260, 18474), (15395, 18312)]