18368740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 44706816

約数和(自身を除く): 26338076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 43, 52, 53, 62, 65, 86, 106, 124, 130, 155, 172, 212, 215, 260, 265, 310, 403, 430, 530, 559, 620, 689, 806, 860, 1060, 1118, 1333, 1378, 1612, 1643, 2015, 2236, 2279, 2666, 2756, 2795, 3286, 3445, 4030, 4558, 5332, 5590, 6572, 6665, 6890, 8060, 8215, 9116, 11180, 11395, 13330, 13780, 16430, 17329, 21359, 22790, 26660, 29627, 32860, 34658, 42718, 45580, 59254, 69316, 70649, 85436, 86645, 106795, 118508, 141298, 148135, 173290, 213590, 282596, 296270, 346580, 353245, 427180, 592540, 706490, 918437, 1412980, 1836874, 3673748, 4592185, 9184370, 18368740]

約数ペア:

[(1, 18368740), (2, 9184370), (4, 4592185), (5, 3673748), (10, 1836874), (13, 1412980), (20, 918437), (26, 706490), (31, 592540), (43, 427180), (52, 353245), (53, 346580), (62, 296270), (65, 282596), (86, 213590), (106, 173290), (124, 148135), (130, 141298), (155, 118508), (172, 106795), (212, 86645), (215, 85436), (260, 70649), (265, 69316), (310, 59254), (403, 45580), (430, 42718), (530, 34658), (559, 32860), (620, 29627), (689, 26660), (806, 22790), (860, 21359), (1060, 17329), (1118, 16430), (1333, 13780), (1378, 13330), (1612, 11395), (1643, 11180), (2015, 9116), (2236, 8215), (2279, 8060), (2666, 6890), (2756, 6665), (2795, 6572), (3286, 5590), (3445, 5332), (4030, 4558)]