18712830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 47096640

約数和(自身を除く): 28383810

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 137, 145, 157, 174, 274, 290, 314, 411, 435, 471, 685, 785, 822, 870, 942, 1370, 1570, 2055, 2355, 3973, 4110, 4553, 4710, 7946, 9106, 11919, 13659, 19865, 21509, 22765, 23838, 27318, 39730, 43018, 45530, 59595, 64527, 68295, 107545, 119190, 129054, 136590, 215090, 322635, 623761, 645270, 1247522, 1871283, 3118805, 3742566, 6237610, 9356415, 18712830]

約数ペア:

[(1, 18712830), (2, 9356415), (3, 6237610), (5, 3742566), (6, 3118805), (10, 1871283), (15, 1247522), (29, 645270), (30, 623761), (58, 322635), (87, 215090), (137, 136590), (145, 129054), (157, 119190), (174, 107545), (274, 68295), (290, 64527), (314, 59595), (411, 45530), (435, 43018), (471, 39730), (685, 27318), (785, 23838), (822, 22765), (870, 21509), (942, 19865), (1370, 13659), (1570, 11919), (2055, 9106), (2355, 7946), (3973, 4710), (4110, 4553)]