20014540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1571}}^1$

素因数の和:1607

約数の個数: 72

約数和(自身を含む): 52687152

約数和(自身を除く): 32672612

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, 1571, 1820, 2548, 3142, 3185, 6284, 6370, 7855, 10997, 12740, 15710, 20423, 21994, 31420, 40846, 43988, 54985, 76979, 81692, 102115, 109970, 142961, 153958, 204230, 219940, 285922, 307916, 384895, 408460, 571844, 714805, 769790, 1000727, 1429610, 1539580, 2001454, 2859220, 4002908, 5003635, 10007270, 20014540]

約数ペア:

[(1, 20014540), (2, 10007270), (4, 5003635), (5, 4002908), (7, 2859220), (10, 2001454), (13, 1539580), (14, 1429610), (20, 1000727), (26, 769790), (28, 714805), (35, 571844), (49, 408460), (52, 384895), (65, 307916), (70, 285922), (91, 219940), (98, 204230), (130, 153958), (140, 142961), (182, 109970), (196, 102115), (245, 81692), (260, 76979), (364, 54985), (455, 43988), (490, 40846), (637, 31420), (910, 21994), (980, 20423), (1274, 15710), (1571, 12740), (1820, 10997), (2548, 7855), (3142, 6370), (3185, 6284)]