28958720

素因数分解:

$2^{13}\times 5^1\times 7^1\times {\mathrm{101}}^1$

素因数の和:139

約数の個数: 112

約数和(自身を含む): 80211168

約数和(自身を除く): 51252448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 101, 112, 128, 140, 160, 202, 224, 256, 280, 320, 404, 448, 505, 512, 560, 640, 707, 808, 896, 1010, 1024, 1120, 1280, 1414, 1616, 1792, 2020, 2048, 2240, 2560, 2828, 3232, 3535, 3584, 4040, 4096, 4480, 5120, 5656, 6464, 7070, 7168, 8080, 8192, 8960, 10240, 11312, 12928, 14140, 14336, 16160, 17920, 20480, 22624, 25856, 28280, 28672, 32320, 35840, 40960, 45248, 51712, 56560, 57344, 64640, 71680, 90496, 103424, 113120, 129280, 143360, 180992, 206848, 226240, 258560, 286720, 361984, 413696, 452480, 517120, 723968, 827392, 904960, 1034240, 1447936, 1809920, 2068480, 2895872, 3619840, 4136960, 5791744, 7239680, 14479360, 28958720]

約数ペア:

[(1, 28958720), (2, 14479360), (4, 7239680), (5, 5791744), (7, 4136960), (8, 3619840), (10, 2895872), (14, 2068480), (16, 1809920), (20, 1447936), (28, 1034240), (32, 904960), (35, 827392), (40, 723968), (56, 517120), (64, 452480), (70, 413696), (80, 361984), (101, 286720), (112, 258560), (128, 226240), (140, 206848), (160, 180992), (202, 143360), (224, 129280), (256, 113120), (280, 103424), (320, 90496), (404, 71680), (448, 64640), (505, 57344), (512, 56560), (560, 51712), (640, 45248), (707, 40960), (808, 35840), (896, 32320), (1010, 28672), (1024, 28280), (1120, 25856), (1280, 22624), (1414, 20480), (1616, 17920), (1792, 16160), (2020, 14336), (2048, 14140), (2240, 12928), (2560, 11312), (2828, 10240), (3232, 8960), (3535, 8192), (3584, 8080), (4040, 7168), (4096, 7070), (4480, 6464), (5120, 5656)]