20509650

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1$

素因数の和:425

約数の個数: 144

約数和(自身を含む): 66852864

約数和(自身を除く): 46343214

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 25, 30, 34, 35, 42, 45, 50, 51, 63, 70, 75, 85, 90, 102, 105, 119, 126, 150, 153, 170, 175, 210, 225, 238, 255, 306, 315, 350, 357, 383, 425, 450, 510, 525, 595, 630, 714, 765, 766, 850, 1050, 1071, 1149, 1190, 1275, 1530, 1575, 1785, 1915, 2142, 2298, 2550, 2681, 2975, 3150, 3447, 3570, 3825, 3830, 5355, 5362, 5745, 5950, 6511, 6894, 7650, 8043, 8925, 9575, 10710, 11490, 13022, 13405, 16086, 17235, 17850, 19150, 19533, 24129, 26775, 26810, 28725, 32555, 34470, 39066, 40215, 45577, 48258, 53550, 57450, 58599, 65110, 67025, 80430, 86175, 91154, 97665, 117198, 120645, 134050, 136731, 162775, 172350, 195330, 201075, 227885, 241290, 273462, 292995, 325550, 402150, 410193, 455770, 488325, 585990, 603225, 683655, 820386, 976650, 1139425, 1206450, 1367310, 1464975, 2050965, 2278850, 2929950, 3418275, 4101930, 6836550, 10254825, 20509650]

約数ペア:

[(1, 20509650), (2, 10254825), (3, 6836550), (5, 4101930), (6, 3418275), (7, 2929950), (9, 2278850), (10, 2050965), (14, 1464975), (15, 1367310), (17, 1206450), (18, 1139425), (21, 976650), (25, 820386), (30, 683655), (34, 603225), (35, 585990), (42, 488325), (45, 455770), (50, 410193), (51, 402150), (63, 325550), (70, 292995), (75, 273462), (85, 241290), (90, 227885), (102, 201075), (105, 195330), (119, 172350), (126, 162775), (150, 136731), (153, 134050), (170, 120645), (175, 117198), (210, 97665), (225, 91154), (238, 86175), (255, 80430), (306, 67025), (315, 65110), (350, 58599), (357, 57450), (383, 53550), (425, 48258), (450, 45577), (510, 40215), (525, 39066), (595, 34470), (630, 32555), (714, 28725), (765, 26810), (766, 26775), (850, 24129), (1050, 19533), (1071, 19150), (1149, 17850), (1190, 17235), (1275, 16086), (1530, 13405), (1575, 13022), (1785, 11490), (1915, 10710), (2142, 9575), (2298, 8925), (2550, 8043), (2681, 7650), (2975, 6894), (3150, 6511), (3447, 5950), (3570, 5745), (3825, 5362), (3830, 5355)]