131467520

素因数分解:

$2^8\times 5^1\times {\mathrm{271}}^1\times {\mathrm{379}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 316901760

約数和(自身を除く): 185434240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 271, 320, 379, 542, 640, 758, 1084, 1280, 1355, 1516, 1895, 2168, 2710, 3032, 3790, 4336, 5420, 6064, 7580, 8672, 10840, 12128, 15160, 17344, 21680, 24256, 30320, 34688, 43360, 48512, 60640, 69376, 86720, 97024, 102709, 121280, 173440, 205418, 242560, 346880, 410836, 485120, 513545, 821672, 1027090, 1643344, 2054180, 3286688, 4108360, 6573376, 8216720, 13146752, 16433440, 26293504, 32866880, 65733760, 131467520]

約数ペア:

[(1, 131467520), (2, 65733760), (4, 32866880), (5, 26293504), (8, 16433440), (10, 13146752), (16, 8216720), (20, 6573376), (32, 4108360), (40, 3286688), (64, 2054180), (80, 1643344), (128, 1027090), (160, 821672), (256, 513545), (271, 485120), (320, 410836), (379, 346880), (542, 242560), (640, 205418), (758, 173440), (1084, 121280), (1280, 102709), (1355, 97024), (1516, 86720), (1895, 69376), (2168, 60640), (2710, 48512), (3032, 43360), (3790, 34688), (4336, 30320), (5420, 24256), (6064, 21680), (7580, 17344), (8672, 15160), (10840, 12128)]