620833280

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7823}}^1$

素因数の和:7877

約数の個数: 80

約数和(自身を含む): 1536758784

約数和(自身を除く): 915925504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7823, 7936, 9920, 15646, 15872, 19840, 31292, 39115, 39680, 62584, 78230, 79360, 125168, 156460, 242513, 250336, 312920, 485026, 500672, 625840, 970052, 1001344, 1212565, 1251680, 1940104, 2002688, 2425130, 2503360, 3880208, 4005376, 4850260, 5006720, 7760416, 9700520, 10013440, 15520832, 19401040, 20026880, 31041664, 38802080, 62083328, 77604160, 124166656, 155208320, 310416640, 620833280]

約数ペア:

[(1, 620833280), (2, 310416640), (4, 155208320), (5, 124166656), (8, 77604160), (10, 62083328), (16, 38802080), (20, 31041664), (31, 20026880), (32, 19401040), (40, 15520832), (62, 10013440), (64, 9700520), (80, 7760416), (124, 5006720), (128, 4850260), (155, 4005376), (160, 3880208), (248, 2503360), (256, 2425130), (310, 2002688), (320, 1940104), (496, 1251680), (512, 1212565), (620, 1001344), (640, 970052), (992, 625840), (1240, 500672), (1280, 485026), (1984, 312920), (2480, 250336), (2560, 242513), (3968, 156460), (4960, 125168), (7823, 79360), (7936, 78230), (9920, 62584), (15646, 39680), (15872, 39115), (19840, 31292)]