1398421780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{241}}^1$

素因数の和:486

約数の個数: 144

約数和(自身を含む): 3559514112

約数和(自身を除く): 2161092332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 191, 196, 217, 241, 245, 310, 382, 434, 482, 490, 620, 764, 868, 955, 964, 980, 1085, 1205, 1337, 1519, 1687, 1910, 2170, 2410, 2674, 3038, 3374, 3820, 4340, 4820, 5348, 5921, 6076, 6685, 6748, 7471, 7595, 8435, 9359, 11809, 11842, 13370, 14942, 15190, 16870, 18718, 23618, 23684, 26740, 29605, 29884, 30380, 33740, 37355, 37436, 41447, 46031, 46795, 47236, 52297, 59045, 59210, 74710, 82894, 92062, 93590, 104594, 118090, 118420, 149420, 165788, 184124, 187180, 207235, 209188, 230155, 236180, 261485, 290129, 322217, 366079, 414470, 460310, 522970, 580258, 644434, 732158, 828940, 920620, 1045940, 1160516, 1288868, 1426961, 1450645, 1464316, 1611085, 1830395, 2255519, 2853922, 2901290, 3222170, 3660790, 4511038, 5707844, 5802580, 6444340, 7134805, 7321580, 9022076, 9988727, 11277595, 14269610, 19977454, 22555190, 28539220, 39954908, 45110380, 49943635, 69921089, 99887270, 139842178, 199774540, 279684356, 349605445, 699210890, 1398421780]

約数ペア:

[(1, 1398421780), (2, 699210890), (4, 349605445), (5, 279684356), (7, 199774540), (10, 139842178), (14, 99887270), (20, 69921089), (28, 49943635), (31, 45110380), (35, 39954908), (49, 28539220), (62, 22555190), (70, 19977454), (98, 14269610), (124, 11277595), (140, 9988727), (155, 9022076), (191, 7321580), (196, 7134805), (217, 6444340), (241, 5802580), (245, 5707844), (310, 4511038), (382, 3660790), (434, 3222170), (482, 2901290), (490, 2853922), (620, 2255519), (764, 1830395), (868, 1611085), (955, 1464316), (964, 1450645), (980, 1426961), (1085, 1288868), (1205, 1160516), (1337, 1045940), (1519, 920620), (1687, 828940), (1910, 732158), (2170, 644434), (2410, 580258), (2674, 522970), (3038, 460310), (3374, 414470), (3820, 366079), (4340, 322217), (4820, 290129), (5348, 261485), (5921, 236180), (6076, 230155), (6685, 209188), (6748, 207235), (7471, 187180), (7595, 184124), (8435, 165788), (9359, 149420), (11809, 118420), (11842, 118090), (13370, 104594), (14942, 93590), (15190, 92062), (16870, 82894), (18718, 74710), (23618, 59210), (23684, 59045), (26740, 52297), (29605, 47236), (29884, 46795), (30380, 46031), (33740, 41447), (37355, 37436)]