210857640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{887}}^1$

素因数の和:1191

約数の個数: 128

約数和(自身を含む): 726312960

約数和(自身を除く): 515455320

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, 120, 140, 168, 210, 280, 283, 420, 566, 840, 849, 887, 1132, 1415, 1698, 1774, 1981, 2264, 2661, 2830, 3396, 3548, 3962, 4245, 4435, 5322, 5660, 5943, 6209, 6792, 7096, 7924, 8490, 8870, 9905, 10644, 11320, 11886, 12418, 13305, 15848, 16980, 17740, 18627, 19810, 21288, 23772, 24836, 26610, 29715, 31045, 33960, 35480, 37254, 39620, 47544, 49672, 53220, 59430, 62090, 74508, 79240, 93135, 106440, 118860, 124180, 149016, 186270, 237720, 248360, 251021, 372540, 502042, 745080, 753063, 1004084, 1255105, 1506126, 1757147, 2008168, 2510210, 3012252, 3514294, 3765315, 5020420, 5271441, 6024504, 7028588, 7530630, 8785735, 10040840, 10542882, 14057176, 15061260, 17571470, 21085764, 26357205, 30122520, 35142940, 42171528, 52714410, 70285880, 105428820, 210857640]

約数ペア:

[(1, 210857640), (2, 105428820), (3, 70285880), (4, 52714410), (5, 42171528), (6, 35142940), (7, 30122520), (8, 26357205), (10, 21085764), (12, 17571470), (14, 15061260), (15, 14057176), (20, 10542882), (21, 10040840), (24, 8785735), (28, 7530630), (30, 7028588), (35, 6024504), (40, 5271441), (42, 5020420), (56, 3765315), (60, 3514294), (70, 3012252), (84, 2510210), (105, 2008168), (120, 1757147), (140, 1506126), (168, 1255105), (210, 1004084), (280, 753063), (283, 745080), (420, 502042), (566, 372540), (840, 251021), (849, 248360), (887, 237720), (1132, 186270), (1415, 149016), (1698, 124180), (1774, 118860), (1981, 106440), (2264, 93135), (2661, 79240), (2830, 74508), (3396, 62090), (3548, 59430), (3962, 53220), (4245, 49672), (4435, 47544), (5322, 39620), (5660, 37254), (5943, 35480), (6209, 33960), (6792, 31045), (7096, 29715), (7924, 26610), (8490, 24836), (8870, 23772), (9905, 21288), (10644, 19810), (11320, 18627), (11886, 17740), (12418, 16980), (13305, 15848)]