20169966285

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{8821}}^1$

素因数の和:8924

約数の個数: 144

約数和(自身を含む): 43772434992

約数和(自身を除く): 23602468707

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 49, 51, 61, 63, 85, 105, 119, 147, 153, 183, 245, 255, 305, 315, 357, 427, 441, 549, 595, 735, 765, 833, 915, 1037, 1071, 1281, 1785, 2135, 2205, 2499, 2745, 2989, 3111, 3843, 4165, 5185, 5355, 6405, 7259, 7497, 8821, 8967, 9333, 12495, 14945, 15555, 19215, 21777, 26463, 26901, 36295, 37485, 44105, 44835, 46665, 50813, 61747, 65331, 79389, 108885, 132315, 134505, 149957, 152439, 185241, 254065, 308735, 326655, 396945, 432229, 449871, 457317, 538081, 555723, 749785, 762195, 926205, 1049699, 1296687, 1349613, 1614243, 2161145, 2249355, 2286585, 2690405, 2778615, 3149097, 3766567, 3890061, 4842729, 5248495, 6483435, 6748065, 7347893, 8071215, 9147377, 9447291, 11299701, 15745485, 18832835, 19450305, 22043679, 24213645, 26365969, 27442131, 33899103, 36739465, 45736885, 47236455, 56498505, 64031639, 66131037, 79097907, 82326393, 110218395, 131829845, 137210655, 169495515, 192094917, 237293721, 320158195, 330655185, 395489535, 411631965, 448221473, 576284751, 960474585, 1186468605, 1344664419, 2241107365, 2881423755, 4033993257, 6723322095, 20169966285]

約数ペア:

[(1, 20169966285), (3, 6723322095), (5, 4033993257), (7, 2881423755), (9, 2241107365), (15, 1344664419), (17, 1186468605), (21, 960474585), (35, 576284751), (45, 448221473), (49, 411631965), (51, 395489535), (61, 330655185), (63, 320158195), (85, 237293721), (105, 192094917), (119, 169495515), (147, 137210655), (153, 131829845), (183, 110218395), (245, 82326393), (255, 79097907), (305, 66131037), (315, 64031639), (357, 56498505), (427, 47236455), (441, 45736885), (549, 36739465), (595, 33899103), (735, 27442131), (765, 26365969), (833, 24213645), (915, 22043679), (1037, 19450305), (1071, 18832835), (1281, 15745485), (1785, 11299701), (2135, 9447291), (2205, 9147377), (2499, 8071215), (2745, 7347893), (2989, 6748065), (3111, 6483435), (3843, 5248495), (4165, 4842729), (5185, 3890061), (5355, 3766567), (6405, 3149097), (7259, 2778615), (7497, 2690405), (8821, 2286585), (8967, 2249355), (9333, 2161145), (12495, 1614243), (14945, 1349613), (15555, 1296687), (19215, 1049699), (21777, 926205), (26463, 762195), (26901, 749785), (36295, 555723), (37485, 538081), (44105, 457317), (44835, 449871), (46665, 432229), (50813, 396945), (61747, 326655), (65331, 308735), (79389, 254065), (108885, 185241), (132315, 152439), (134505, 149957)]