213354120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{253993}}^1$

素因数の和:254014

約数の個数: 64

約数和(自身を含む): 731502720

約数和(自身を除く): 518148600

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, 420, 840, 253993, 507986, 761979, 1015972, 1269965, 1523958, 1777951, 2031944, 2539930, 3047916, 3555902, 3809895, 5079860, 5333853, 6095832, 7111804, 7619790, 8889755, 10159720, 10667706, 14223608, 15239580, 17779510, 21335412, 26669265, 30479160, 35559020, 42670824, 53338530, 71118040, 106677060, 213354120]

約数ペア:

[(1, 213354120), (2, 106677060), (3, 71118040), (4, 53338530), (5, 42670824), (6, 35559020), (7, 30479160), (8, 26669265), (10, 21335412), (12, 17779510), (14, 15239580), (15, 14223608), (20, 10667706), (21, 10159720), (24, 8889755), (28, 7619790), (30, 7111804), (35, 6095832), (40, 5333853), (42, 5079860), (56, 3809895), (60, 3555902), (70, 3047916), (84, 2539930), (105, 2031944), (120, 1777951), (140, 1523958), (168, 1269965), (210, 1015972), (280, 761979), (420, 507986), (840, 253993)]