201781840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:257

約数の個数: 160

約数和(自身を含む): 545027616

約数和(自身を除く): 343245776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 101, 104, 113, 130, 136, 170, 202, 208, 221, 226, 260, 272, 340, 404, 442, 452, 505, 520, 565, 680, 808, 884, 904, 1010, 1040, 1105, 1130, 1313, 1360, 1469, 1616, 1717, 1768, 1808, 1921, 2020, 2210, 2260, 2626, 2938, 3434, 3536, 3842, 4040, 4420, 4520, 5252, 5876, 6565, 6868, 7345, 7684, 8080, 8585, 8840, 9040, 9605, 10504, 11413, 11752, 13130, 13736, 14690, 15368, 17170, 17680, 19210, 21008, 22321, 22826, 23504, 24973, 26260, 27472, 29380, 30736, 34340, 38420, 44642, 45652, 49946, 52520, 57065, 58760, 68680, 76840, 89284, 91304, 99892, 105040, 111605, 114130, 117520, 124865, 137360, 148369, 153680, 178568, 182608, 194021, 199784, 223210, 228260, 249730, 296738, 357136, 388042, 399568, 446420, 456520, 499460, 593476, 741845, 776084, 892840, 913040, 970105, 998920, 1186952, 1483690, 1552168, 1785680, 1940210, 1997840, 2373904, 2522273, 2967380, 3104336, 3880420, 5044546, 5934760, 7760840, 10089092, 11869520, 12611365, 15521680, 20178184, 25222730, 40356368, 50445460, 100890920, 201781840]

約数ペア:

[(1, 201781840), (2, 100890920), (4, 50445460), (5, 40356368), (8, 25222730), (10, 20178184), (13, 15521680), (16, 12611365), (17, 11869520), (20, 10089092), (26, 7760840), (34, 5934760), (40, 5044546), (52, 3880420), (65, 3104336), (68, 2967380), (80, 2522273), (85, 2373904), (101, 1997840), (104, 1940210), (113, 1785680), (130, 1552168), (136, 1483690), (170, 1186952), (202, 998920), (208, 970105), (221, 913040), (226, 892840), (260, 776084), (272, 741845), (340, 593476), (404, 499460), (442, 456520), (452, 446420), (505, 399568), (520, 388042), (565, 357136), (680, 296738), (808, 249730), (884, 228260), (904, 223210), (1010, 199784), (1040, 194021), (1105, 182608), (1130, 178568), (1313, 153680), (1360, 148369), (1469, 137360), (1616, 124865), (1717, 117520), (1768, 114130), (1808, 111605), (1921, 105040), (2020, 99892), (2210, 91304), (2260, 89284), (2626, 76840), (2938, 68680), (3434, 58760), (3536, 57065), (3842, 52520), (4040, 49946), (4420, 45652), (4520, 44642), (5252, 38420), (5876, 34340), (6565, 30736), (6868, 29380), (7345, 27472), (7684, 26260), (8080, 24973), (8585, 23504), (8840, 22826), (9040, 22321), (9605, 21008), (10504, 19210), (11413, 17680), (11752, 17170), (13130, 15368), (13736, 14690)]