18129020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1423}}^1$

素因数の和:1459

約数の個数: 72

約数和(自身を含む): 47726784

約数和(自身を除く): 29597764

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1423, 1820, 2548, 2846, 3185, 5692, 6370, 7115, 9961, 12740, 14230, 18499, 19922, 28460, 36998, 39844, 49805, 69727, 73996, 92495, 99610, 129493, 139454, 184990, 199220, 258986, 278908, 348635, 369980, 517972, 647465, 697270, 906451, 1294930, 1394540, 1812902, 2589860, 3625804, 4532255, 9064510, 18129020]

約数ペア:

[(1, 18129020), (2, 9064510), (4, 4532255), (5, 3625804), (7, 2589860), (10, 1812902), (13, 1394540), (14, 1294930), (20, 906451), (26, 697270), (28, 647465), (35, 517972), (49, 369980), (52, 348635), (65, 278908), (70, 258986), (91, 199220), (98, 184990), (130, 139454), (140, 129493), (182, 99610), (196, 92495), (245, 73996), (260, 69727), (364, 49805), (455, 39844), (490, 36998), (637, 28460), (910, 19922), (980, 18499), (1274, 14230), (1423, 12740), (1820, 9961), (2548, 7115), (2846, 6370), (3185, 5692)]