25720380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 90417600

約数和(自身を除く): 64697220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 137, 140, 149, 180, 210, 252, 274, 298, 315, 411, 420, 447, 548, 596, 630, 685, 745, 822, 894, 959, 1043, 1233, 1260, 1341, 1370, 1490, 1644, 1788, 1918, 2055, 2086, 2235, 2466, 2682, 2740, 2877, 2980, 3129, 3836, 4110, 4172, 4470, 4795, 4932, 5215, 5364, 5754, 6165, 6258, 6705, 8220, 8631, 8940, 9387, 9590, 10430, 11508, 12330, 12516, 13410, 14385, 15645, 17262, 18774, 19180, 20413, 20860, 24660, 26820, 28770, 31290, 34524, 37548, 40826, 43155, 46935, 57540, 61239, 62580, 81652, 86310, 93870, 102065, 122478, 142891, 172620, 183717, 187740, 204130, 244956, 285782, 306195, 367434, 408260, 428673, 571564, 612390, 714455, 734868, 857346, 918585, 1224780, 1286019, 1428910, 1714692, 1837170, 2143365, 2572038, 2857820, 3674340, 4286730, 5144076, 6430095, 8573460, 12860190, 25720380]

約数ペア:

[(1, 25720380), (2, 12860190), (3, 8573460), (4, 6430095), (5, 5144076), (6, 4286730), (7, 3674340), (9, 2857820), (10, 2572038), (12, 2143365), (14, 1837170), (15, 1714692), (18, 1428910), (20, 1286019), (21, 1224780), (28, 918585), (30, 857346), (35, 734868), (36, 714455), (42, 612390), (45, 571564), (60, 428673), (63, 408260), (70, 367434), (84, 306195), (90, 285782), (105, 244956), (126, 204130), (137, 187740), (140, 183717), (149, 172620), (180, 142891), (210, 122478), (252, 102065), (274, 93870), (298, 86310), (315, 81652), (411, 62580), (420, 61239), (447, 57540), (548, 46935), (596, 43155), (630, 40826), (685, 37548), (745, 34524), (822, 31290), (894, 28770), (959, 26820), (1043, 24660), (1233, 20860), (1260, 20413), (1341, 19180), (1370, 18774), (1490, 17262), (1644, 15645), (1788, 14385), (1918, 13410), (2055, 12516), (2086, 12330), (2235, 11508), (2466, 10430), (2682, 9590), (2740, 9387), (2877, 8940), (2980, 8631), (3129, 8220), (3836, 6705), (4110, 6258), (4172, 6165), (4470, 5754), (4795, 5364), (4932, 5215)]