209352780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12781}}^1$

素因数の和:12816

約数の個数: 144

約数和(自身を含む): 781644864

約数和(自身を除く): 572292084

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 5460, 8190, 12781, 16380, 25562, 38343, 51124, 63905, 76686, 89467, 115029, 127810, 153372, 166153, 178934, 191715, 230058, 255620, 268401, 332306, 357868, 383430, 447335, 460116, 498459, 536802, 575145, 664612, 766860, 805203, 830765, 894670, 996918, 1073604, 1150290, 1163071, 1342005, 1495377, 1610406, 1661530, 1789340, 1993836, 2300580, 2326142, 2492295, 2684010, 2990754, 3220812, 3323060, 3489213, 4026015, 4652284, 4984590, 5368020, 5815355, 5981508, 6978426, 7476885, 8052030, 9969180, 10467639, 11630710, 13956852, 14953770, 16104060, 17446065, 20935278, 23261420, 29907540, 34892130, 41870556, 52338195, 69784260, 104676390, 209352780]

約数ペア:

[(1, 209352780), (2, 104676390), (3, 69784260), (4, 52338195), (5, 41870556), (6, 34892130), (7, 29907540), (9, 23261420), (10, 20935278), (12, 17446065), (13, 16104060), (14, 14953770), (15, 13956852), (18, 11630710), (20, 10467639), (21, 9969180), (26, 8052030), (28, 7476885), (30, 6978426), (35, 5981508), (36, 5815355), (39, 5368020), (42, 4984590), (45, 4652284), (52, 4026015), (60, 3489213), (63, 3323060), (65, 3220812), (70, 2990754), (78, 2684010), (84, 2492295), (90, 2326142), (91, 2300580), (105, 1993836), (117, 1789340), (126, 1661530), (130, 1610406), (140, 1495377), (156, 1342005), (180, 1163071), (182, 1150290), (195, 1073604), (210, 996918), (234, 894670), (252, 830765), (260, 805203), (273, 766860), (315, 664612), (364, 575145), (390, 536802), (420, 498459), (455, 460116), (468, 447335), (546, 383430), (585, 357868), (630, 332306), (780, 268401), (819, 255620), (910, 230058), (1092, 191715), (1170, 178934), (1260, 166153), (1365, 153372), (1638, 127810), (1820, 115029), (2340, 89467), (2730, 76686), (3276, 63905), (4095, 51124), (5460, 38343), (8190, 25562), (12781, 16380)]