21306880

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:100

約数の個数: 160

約数和(自身を含む): 61871040

約数和(自身を除く): 40564160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 41, 56, 58, 64, 70, 80, 82, 112, 116, 128, 140, 145, 160, 164, 203, 205, 224, 232, 256, 280, 287, 290, 320, 328, 406, 410, 448, 464, 512, 560, 574, 580, 640, 656, 812, 820, 896, 928, 1015, 1120, 1148, 1160, 1189, 1280, 1312, 1435, 1624, 1640, 1792, 1856, 2030, 2240, 2296, 2320, 2378, 2560, 2624, 2870, 3248, 3280, 3584, 3712, 4060, 4480, 4592, 4640, 4756, 5248, 5740, 5945, 6496, 6560, 7424, 8120, 8323, 8960, 9184, 9280, 9512, 10496, 11480, 11890, 12992, 13120, 14848, 16240, 16646, 17920, 18368, 18560, 19024, 20992, 22960, 23780, 25984, 26240, 32480, 33292, 36736, 37120, 38048, 41615, 45920, 47560, 51968, 52480, 64960, 66584, 73472, 74240, 76096, 83230, 91840, 95120, 103936, 104960, 129920, 133168, 146944, 152192, 166460, 183680, 190240, 259840, 266336, 304384, 332920, 367360, 380480, 519680, 532672, 608768, 665840, 734720, 760960, 1065344, 1331680, 1521920, 2130688, 2663360, 3043840, 4261376, 5326720, 10653440, 21306880]

約数ペア:

[(1, 21306880), (2, 10653440), (4, 5326720), (5, 4261376), (7, 3043840), (8, 2663360), (10, 2130688), (14, 1521920), (16, 1331680), (20, 1065344), (28, 760960), (29, 734720), (32, 665840), (35, 608768), (40, 532672), (41, 519680), (56, 380480), (58, 367360), (64, 332920), (70, 304384), (80, 266336), (82, 259840), (112, 190240), (116, 183680), (128, 166460), (140, 152192), (145, 146944), (160, 133168), (164, 129920), (203, 104960), (205, 103936), (224, 95120), (232, 91840), (256, 83230), (280, 76096), (287, 74240), (290, 73472), (320, 66584), (328, 64960), (406, 52480), (410, 51968), (448, 47560), (464, 45920), (512, 41615), (560, 38048), (574, 37120), (580, 36736), (640, 33292), (656, 32480), (812, 26240), (820, 25984), (896, 23780), (928, 22960), (1015, 20992), (1120, 19024), (1148, 18560), (1160, 18368), (1189, 17920), (1280, 16646), (1312, 16240), (1435, 14848), (1624, 13120), (1640, 12992), (1792, 11890), (1856, 11480), (2030, 10496), (2240, 9512), (2296, 9280), (2320, 9184), (2378, 8960), (2560, 8323), (2624, 8120), (2870, 7424), (3248, 6560), (3280, 6496), (3584, 5945), (3712, 5740), (4060, 5248), (4480, 4756), (4592, 4640)]