81315360

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{2689}}^1$

素因数の和:2720

約数の個数: 192

約数和(自身を含む): 325382400

約数和(自身を除く): 244067040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 2689, 3024, 3360, 3780, 4320, 5040, 5378, 6048, 7560, 8067, 10080, 10756, 13445, 15120, 16134, 18823, 21512, 24201, 26890, 30240, 32268, 37646, 40335, 43024, 48402, 53780, 56469, 64536, 72603, 75292, 80670, 86048, 94115, 96804, 107560, 112938, 121005, 129072, 145206, 150584, 161340, 169407, 188230, 193608, 215120, 225876, 242010, 258144, 282345, 290412, 301168, 322680, 338814, 363015, 376460, 387216, 430240, 451752, 484020, 508221, 564690, 580824, 602336, 645360, 677628, 726030, 752920, 774432, 847035, 903504, 968040, 1016442, 1129380, 1161648, 1290720, 1355256, 1452060, 1505840, 1694070, 1807008, 1936080, 2032884, 2258760, 2323296, 2541105, 2710512, 2904120, 3011680, 3388140, 3872160, 4065768, 4517520, 5082210, 5421024, 5808240, 6776280, 8131536, 9035040, 10164420, 11616480, 13552560, 16263072, 20328840, 27105120, 40657680, 81315360]

約数ペア:

[(1, 81315360), (2, 40657680), (3, 27105120), (4, 20328840), (5, 16263072), (6, 13552560), (7, 11616480), (8, 10164420), (9, 9035040), (10, 8131536), (12, 6776280), (14, 5808240), (15, 5421024), (16, 5082210), (18, 4517520), (20, 4065768), (21, 3872160), (24, 3388140), (27, 3011680), (28, 2904120), (30, 2710512), (32, 2541105), (35, 2323296), (36, 2258760), (40, 2032884), (42, 1936080), (45, 1807008), (48, 1694070), (54, 1505840), (56, 1452060), (60, 1355256), (63, 1290720), (70, 1161648), (72, 1129380), (80, 1016442), (84, 968040), (90, 903504), (96, 847035), (105, 774432), (108, 752920), (112, 726030), (120, 677628), (126, 645360), (135, 602336), (140, 580824), (144, 564690), (160, 508221), (168, 484020), (180, 451752), (189, 430240), (210, 387216), (216, 376460), (224, 363015), (240, 338814), (252, 322680), (270, 301168), (280, 290412), (288, 282345), (315, 258144), (336, 242010), (360, 225876), (378, 215120), (420, 193608), (432, 188230), (480, 169407), (504, 161340), (540, 150584), (560, 145206), (630, 129072), (672, 121005), (720, 112938), (756, 107560), (840, 96804), (864, 94115), (945, 86048), (1008, 80670), (1080, 75292), (1120, 72603), (1260, 64536), (1440, 56469), (1512, 53780), (1680, 48402), (1890, 43024), (2016, 40335), (2160, 37646), (2520, 32268), (2689, 30240), (3024, 26890), (3360, 24201), (3780, 21512), (4320, 18823), (5040, 16134), (5378, 15120), (6048, 13445), (7560, 10756), (8067, 10080)]