17978940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{751}}^1$

素因数の和:792

約数の個数: 144

約数和(自身を含む): 65694720

約数和(自身を除く): 47715780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 751, 798, 855, 1140, 1197, 1260, 1330, 1502, 1596, 1710, 1995, 2253, 2394, 2660, 3004, 3420, 3755, 3990, 4506, 4788, 5257, 5985, 6759, 7510, 7980, 9012, 10514, 11265, 11970, 13518, 14269, 15020, 15771, 21028, 22530, 23940, 26285, 27036, 28538, 31542, 33795, 42807, 45060, 47313, 52570, 57076, 63084, 67590, 71345, 78855, 85614, 94626, 99883, 105140, 128421, 135180, 142690, 157710, 171228, 189252, 199766, 214035, 236565, 256842, 285380, 299649, 315420, 399532, 428070, 473130, 499415, 513684, 599298, 642105, 856140, 898947, 946260, 998830, 1198596, 1284210, 1498245, 1797894, 1997660, 2568420, 2996490, 3595788, 4494735, 5992980, 8989470, 17978940]

約数ペア:

[(1, 17978940), (2, 8989470), (3, 5992980), (4, 4494735), (5, 3595788), (6, 2996490), (7, 2568420), (9, 1997660), (10, 1797894), (12, 1498245), (14, 1284210), (15, 1198596), (18, 998830), (19, 946260), (20, 898947), (21, 856140), (28, 642105), (30, 599298), (35, 513684), (36, 499415), (38, 473130), (42, 428070), (45, 399532), (57, 315420), (60, 299649), (63, 285380), (70, 256842), (76, 236565), (84, 214035), (90, 199766), (95, 189252), (105, 171228), (114, 157710), (126, 142690), (133, 135180), (140, 128421), (171, 105140), (180, 99883), (190, 94626), (210, 85614), (228, 78855), (252, 71345), (266, 67590), (285, 63084), (315, 57076), (342, 52570), (380, 47313), (399, 45060), (420, 42807), (532, 33795), (570, 31542), (630, 28538), (665, 27036), (684, 26285), (751, 23940), (798, 22530), (855, 21028), (1140, 15771), (1197, 15020), (1260, 14269), (1330, 13518), (1502, 11970), (1596, 11265), (1710, 10514), (1995, 9012), (2253, 7980), (2394, 7510), (2660, 6759), (3004, 5985), (3420, 5257), (3755, 4788), (3990, 4506)]